Honestly. One of the scariest would probably have to be the time I spilt Ice Cream on my new Windows Laptop a few years ago at like 3 in the morning. I was finally happy that I had a PC where I could handle playing games with high requirements. (like, Arma 2) -- long story short; I'm still angry at myself. Fried the motherboard. But at the end of the day; I learned to never get a laptop again, and just stick to desktop.
The questions I ask myself to this day about that event:
-Why were you so fat?
-Why did you freak out instead of pulling the battery quickly?
-Why didn't you just build a decent desktop?