seeing a kid kneeing in a window on the 3rd floor looking down to the backyard

Not really a nightmare, not even a night-nightmare at all, but sometimes this view flashes through my memory  at daytime. I hope nothing like that will ever really happen caused by my carelessness. I also hope, this flash-back will stop haunting me one day.

just saw an "rm *" in my bash history

That one was perfectly right, but once in a while I remember having deleted the kernel boot image of a Unix machine like 17 years ago. It didn't really cause a lot of trouble, and the case got solved w/o too much pain, but …