Well, in our theme of the morning, I can one-up you on that one.
A few years back, my wife's younger sister (different than above) and her husband relocated here from Chicago and moved in with us for a few months until they could get settled. He turned out to be a bum and walked out on her. But he only took his clothes, his Playstation and his truck (I missed the Playstation...). She later moved out and has remarried and has kids. She got all of her stuff, but some of his was still in our attic.
Our church does a major yard sale in the spring to raise money for missions (we raise in excess of $10,000 for supplies for our short term projects). So after about 2 years of not hearing from him and her saying she didn't want the stuff, I started boxing it up for the sale. He had several boxes of books which we didn't even want to go through. So I just labeled them for the sale. When I was getting ready to take them to the church, I decided "what the heck, wonder if there's anything I'd want to read." I opened up a box and found that it was not books, but empty liquor bottles they had saved from "special occasions." (I have saved wine bottles for candles, but I've never saved liquor bottles...).
Anyway, I was just glad I got those before I took them to the church...
LOL!!! I can't top that one...except for maybe the time I was moving a friends stuff back into his house in San Diego before he got back from a deployment, so his wife could get everything settled in prior to his arrival. I was at the storage place, when I noticed a nearby door ajar...I went to go and make sure that everything was kopasetic, when the smell hit me... dead guy, mid 30's needle still in his arm...that kinda put a kink in my plans the rest of the day...course, it wasn't in my yard or my attic...