Thrillkiller is odd, but that's nothing compared to some of DC's other alternate world stories. The Elseworlds 80-Page Giant is particularly infamous because it involved a story called Letitia Lerner, Superman's Babysitter, where a baby Man Of Steel being was put in a microwave. DC Comics President Paul Levitz found that kinda inappropriate, and the entire print run was pulped. Still, that's not the weirdest story to appear in the special. There was also a Kingdom Come parody where Superman has gone to live in space because he can't stand the incessant beeping of Jimmy Olsen's watch, a Lovecraftian horror Batman story, and the especially out-there Rockumentary by Bronwyn Carlton, Greg Luzniak, and Anibal Rodriguez. In that particular alternate reality story Lex Luthor was a Phil Spector-esque pop producer, a svengali who helped mastermind some of the biggest names in musical history (which happens to include Beatles-like mop-headed Batman and Superman). Amongst his other protégées were alternative lifestyle folkies Ivy and Harley as in, Poison and Quinn, apparently a legit couple.
Tom Baker is the Comics Editor at WhatCulture! He's heard all the Doctor Who jokes, but not many about Randall and Hopkirk. He also blogs at http://communibearsilostate.wordpress.com/