It's OK. I'm sure it wasn't a ton of money to fuss over the drawing was sentimental, but I'm sure you would have gotten over it within a few days... I remember when I was 16/17, my mom donated an old toy I was using to stash my money in... if you semi took it apart, you could access most of the internals, which I stripped and used to use as a safe... after saving around $8k and me leaving for a week during summer to do a job, I came home only to find out she had donated the toy to a charity after cleaning my room (i was moving out anyway so she decided to "declutter" while i was gone).... I've never seen it again, and she still has trouble speaking when I bring up the incident....

BTW it was a firemen toy and everytime I see the firetrucks/firestation I always recollect on this... 6 years later, and me and her still only talk about once every 2 years.... just remember OP it could be worse :)