I went to a hen party over the weekend, and DH's parents popped round for a dinner while I was away. We keep our flat very clean and tidy. Our main bathroom wasn't dirty, but could have done with a light clean; probably some of my hair in the plug/around the shower, cabinet was a bit dusty, mirror needed a polish, a bit of limescale around the taps. I've just started a new job and an evening course, been really busy, and didn't have time to give it a once over before I left. (Just to note DH does his share of housework, I usually do the bathroom).
Anyway, MIL decided to thoroughly clean the bathroom while she was here. She emptied the bin which included my used tampons/sanitary towels, possibly condoms. I'm not awkward or uncomfortable about periods/sex or anything, but that's pretty personal. I'm a bit annoyed that she took it upon herself to clean my home, it's not like it was filthy, and has gone into my bin for no reason whatsoever. AIBU?