I have no problem with slice-of-life AUs, but it bugs me when they don't try hard enough to adapt the characters' whole deal to the new milieu. "Samus Aran would be a gym instructor" nah, man – think pest control. She used to work for one of the big outfits in town, but she was forced to go freelance after that one lady's house burned to the ground during a routine bedbug fumigation. Officially it wasn't her fault – the client didn't properly disclose what kind of chemicals she was keeping in her basement – but word gets around, you know?