I didn't care about the toys but when I moved out my dad threw away my box of art! I had hundreds of drawings in there. I was mad for years.
And the worst part was that I was planning to take everything with me and he got angry that I was taking so much stuff and convinced me that I could pick some of it up later. Of course I never could because I didn't have a car and I'd have had to drag it all up on the bus. So it sat in his basement for a while and eventually he threw it away in one of his crazy cleaning binges.
He probably did me a favour since everything in there was awful BUT STILL.