ON Purpose?

I know things accidentally get broken, torwn and just plain wear out. But honestly when some of my favorite items get broken, or come up missing I have to think these things are being done on purpose. I know foster children tend to do these things. I never really thought after having a kid (s) 6 or 7 years they would still have these behaviors. I usually try to just let it go especially if the kid own up to breaking or tearing something up. But really? Just the things I really like. My favorite cup? Not the chiped, old, no one knows where it came from cup. Just my fairly new, the one I drink out of all the time cup. Go figure. Maybe it is accidents. Maybe not.