I blame the ghost in the machine

I am kind of embarrassed to mention it, but my computer had to go in for repairs. For some reason my computer screen went black and stayed that way for days. So I took it in for repairs and guess what? The computer suddenly started working perfectly and the tech guy blamed me for not shutting down my laptop properly. I am convinced that me and computers don't get along. There is a ghost in the machine that plays all kinds of havoc and makes me look bad. Bad Ghost.