UFOs targeting Nuclear Sites?

Ever try to remember as far back into your life as you could?
Every time someone asks me that, I go back to a day when I was three. I woke up one morning with a strange bump on my head and I couldn't remember what had happened the day before or anything before then. It even took me a good 15 or so minutes before I could remember my name, realize I was in my moms apartment, etc.

I'm not saying I was abducted, but it is a possibility, you know? The scar on my head where that bump was left me with a small bald spot.