I had one crash when I left a terminal open and my four-year-old came in and began playing with the mouse, copying and pasting the same stuff over and over rapi

I had one crash when I left a terminal open and my four-year-old came in and began playing with the mouse, copying and pasting the same stuff over and over rapidly. I've not been able to reproduce it yet. He's still in there, it's been 2 months now for four hours each day. My wife says it's not good for him but the needs of OSS must come first!