When we were recently counting down the worst things that Batman has ever done, one of the very top spots was devoted to the fact that he allowed Jean-Paul Valley to take over as Batman while he was recovering from a broken back. The reason that it was so particularly egregious is the fact that Batman first met Jean-Paul Valley when Valley was brainwashed into becoming the assassin known as Azrael. Batman helped him defeat his programming, and then took it upon himself to train Jean-Paul as a vigilante, sans the programming.
Master Detective: He is considered as the "World's Greatest Detective", almost without peer. Bruce is capable of observation, forensic investigation, and inductive and deductive reasoning of the highest caliber. Human intuition is an unlearnable trait and one of Batman's most effective tools. Given any mystery, he can arrive at any conclusions with a fraction of the data. He has aided GCPD in solving hundreds of inconclusive crime.
The movie which a young Bruce and his parents were seeing on the night of their murder is generally stated to be "Mark of Zorro" (the exact version varies). This is important because Bob Kane stated that he drew inspiration for Batman from seeing a screening of that very movie. He also drew inspiration from images of Leonardo da Vinci's flying machine.
Master Spy: His advanced and extensive Ninjutsu and law enforcement training has made him a master at stealth, espionage, infiltration, and sabotage. Bruce is capable of breaching very high-security facilities with ease and without being detected. Batman's stealth prowess he is capable of breaking into a top-secret base a mile under Gotham City and even the infamous Area 51 completely unnoticed. He has proven to be very familiar with military protocols, as he casually anticipated and countered law enforcement and paratrooper tactics and strategies. Bruce has also learned how to pick various locks when he was in grade school.
Batman comics were among those criticized when the comic book industry came under scrutiny with the publication of psychologist Fredric Wertham's book Seduction of the Innocent in 1954. Wertham's thesis was that children imitated crimes committed in comic books, and that these works corrupted the morals of the youth. Wertham criticized Batman comics for their supposed homosexual overtones and argued that Batman and Robin were portrayed as lovers. Wertham's criticisms raised a public outcry during the 1950s, eventually leading to the establishment of the Comics Code Authority, a code that is no longer in use by the comic book industry. The tendency towards a "sunnier Batman" in the postwar years intensified after the introduction of the Comics Code. Scholars have suggested that the characters of Batwoman (in 1956) and the pre-Barbara Gordon Bat-Girl (in 1961) were introduced in part to refute the allegation that Batman and Robin were gay, and the stories took on a campier, lighter feel.
When Bob Kane first designed Batman's costume, his idea behind Batman was more similar to Hawkman than anything else, in the sense that he saw the character as literally flying like a bat via Bat-like wings. Incidentally, Kane was influenced by some of Leonardo Da Vinci's designs of a theoretical flying machine. Kane's collaborator, Bill Finger, told Kane that he should make the wings a cape instead. In addition, while Kane was thinking a red costume, Finger told him to go darker instead.
Sales had lagged enough that Julius Schwartz was brought on board and he brought star artist Carmine Infantino with him. They wanted to emphasize that this was a new era in Batman comics, so they changed the costume by adding a yellow oval behind Batman's bat symbol on his chest. However, that was pretty much it for changes, so it wasn't exactly groundbreaking.
During the 1950s, the "Batman" titles were very much the second-class citizens of the DC Comics line of superhero books. In fact, the "DC" aspect of the company's name (which was named after "Detective Comics," where Batman debuted) was rarely as de-emphasized as it was in this era, when the "DC Bullet" featured DC in the center of the logo circle but Superman at the top of the circle and National Comics on the bottom (talk about a cluttered logo). Batman's stories were mostly just riffs on ideas used in Superman comics of the era (Vicki Vale as their Lois Lane, Bat-Mite was their Mr. Mxyzptlk, etc.)
Reviving in a hospital in the 1930s, Bruce meets Marsha, a woman who claims that she wants to employ him as a detective to investigate the death of her friend, Martha Wayne, providing him with a 1930s suit to wear as he carries out his investigations. Meeting with Martha's parents, Bruce learns of Thomas Wayne's apparent infidelity and his connection to various orgies, but remains suspicious that he is not being told the whole truth. After Wayne is provided with a Bat-costume to wear during the final stages of his investigation- the same costume worn by Thomas Wayne long ago-, he tracks 'Marsha' to a graveyard, where it is revealed that she is a member of the Black Glove, who believes that she will be granted eternal youth if she ritually sacrifices the 'Bat-Man', having selected the amnesiac Bruce as the perfect sacrifice as nobody will miss him. Despite his confusion and weakness, Wayne fights off the Black Glove before Carter Nichols's time machine teleports him to the end of time, leaving the Glove without a sacrifice. Bruce returns to the JLA Watchtower as a twisted cybernetic Batman.
Writers have varied in the approach over the years to the "playboy" aspect of Bruce Wayne's persona. Some writers show his playboy reputation as a manufactured illusion to support his mission as Batman, while others have depicted Bruce Wayne as genuinely enjoying the benefits of being "Gotham's most eligible bachelor". Bruce Wayne has been portrayed as being romantically linked with many women throughout his various incarnations. The most significant relationships occurred with Selina Kyle, who is also Catwoman and Talia al Ghul, as both women gave birth to his biological offsprings, Helena Wayne and Damian Wayne, respectively.
Harley Quinn: Best known as "The Joker's Girlfriend", Harley has had occasional romantic encounters with Batman, most notably her kiss with him in the episode Harley's Holiday from Batman: The Animated Series. Recently, in the The New 52, there have been a couple of stories in which Harley became infatuated either with Bruce Wayne or Batman. These attractions appear to be entirely one-sided and Batman has shown no signs of attraction towards Harley.