Newsarama has an article about a Batman animated series concept that never got past the development stage and it's definitely got the "HUH?!" factor: Gotham High.
What if Bruce Wayne was never privately schooled and instead went to public high school with all of his future arch enemies?
I have to say, I'd be sort of interested in taking a look at this if it had come to fruition. This is just the sort of bizarre, "What kind of drugs are these people on?" idea that would get my attention.
The writer speculates Young Justice got in the way of this, and that's probably for the best. But still, I wish this at least got to the pilot stage.
Link's down. But it does remind me of a pitch website I saw once that featured a teenage Bruce Wayne growing up with Alfred, and getting into adventures with best-friend-eventual-villain Harvey Dent. The series eventually became Smallville and they went with the Dark Knight trilogy instead.
"As you may have read in Robert Parker's Wine Newsletter, 'Donaghy Estates tastes like the urine of Satan, after a hefty portion of asparagus.'" Jack Donaghy, 30 Rock