Thomas Wayne was such a bad ass Batman - if DC ever does another Crisis story, they should have Thomas, Bruce, Dick, Damian, and Terry working together as a team of Batmen. They better do it before I do!
Oh, but he was Batman! There was a comic book storyline called "Flashpoint" where Barry Allen changed the events of history, and in this timeline, Bruce Wayne was shot and killed, instead of his parents; causing Thomas to become Batman, and Martha to become the Joker. It was cool see what Batman would be like with the loss of a child instead of the loss of parents. Bruce is more a figure of justice whereas Thomas was more of revenge - using guns and all. Very cool stuff.
If interested, you should check out the trade paperbacks "Flashpoint" and "World of Flashpoint Batman" -- and also the animated movie, "Justice League: the Flashpoint Paradox."
then martha got as insane as the joker we know is? weird thought. I really never heard about this timeline, but it seems to be fun indead. thanks for clearing me up in this point.
I would like to read them one day, but I'm german and reading english books or comics are a pretty hard challenge. specially if they use slang and stuff so I can only read translated comics and if this timeline wasn't sold in germany I will never have a chance to read it.