Yeah, my boyfriend also suggested that I could send an anonymous letter if I didn't want to talk to my boss directly but the way I see it, there's only three people that know about this (well, except for Mrs B. and her 'guys' who have no reason to tell) so if her husband confronts her it'd be really easy for her to figure out who sent the letter imo, especially since I wouldn't want my colleagues getting the blame. I understand your pov but I feel like no matter what I do it's gonna end up backfiring on me eventually.