Two words: Weiss Kreuz. I picked up the first four DVDs of it when it got translated in 2001. I was a hopeless bishie-addict back then, and when I rewatched it of late with my best friend I realized how fucking terrible it is.
The art, when not focused up close on one of the main characters, is pretty damned bad--there's loops of two-frame animation aplenty, and sometimes they hold on one frame for upwards of five seconds.
The story isn't much better. Four bishonen work at a flower shop as their cover, because they're really assassins who kill off evil people who do things like run a prostitution ring or do unethical medical experiments on human subjects. It's a little like Charlie's Angels, except totally stupid and played utterly fucking straight.
There are plot holes all over the damn place. At one point our heroes have just killed off a tentacle monster (don't ask...) in a burning building. They and the four lady assassins they were also up against are trapped in said building, and the episode ends on a wide shot of it collapsing in flames. Well, guess what? Everyone lives. Including the tentacle monster, who is next seen about ten or twelve episodes later in a science tube in non-tentacle-monster mode.
As for characters, there's the leader, Aya, who joined Weiss (the good guys) because a certain Evil Bastard killed off his family and then ran over his younger sister, putting her in a coma. So he's in it for revenge. There's Omi, who's the hacker; he's the youngest of the group, and his backstory and love interest is just a colossal trainwreck I won't get into, but incest is involved. There's Ken, who's just sorta...there. And then there's Yohji, the Casanova, who goddamn garrotes people when he's on missions; he's trying to find his ex-partner from when he was a private investigator and eventually does in the stupidest way possible.
It's bad enough in Japanese, but the English dub is complete and utter shit. Aya's Japanese voice actor is Koyasu Takehito, who emotes his goddamn ass off when his character gets angry. Paul Juhn, on the other hand, is clearly phoning it in the whole time.
There is one bright spot in this mess, however, if you watch it on DVD. The outtakes are quite cackleworthy, and the Japanese voice actor interviews are hilarious. Poor giraffe plushie. Poor, poor giraffe plushie.