We all have different areas and levels of proficiency on these computers..
My sister in law is a whiz on twitter and facebook....but two years ago, she ask me to go help her set-up a new laptop for her.
Before I start,I ask her why a new one?....because I'd set one up for her a year before...
She tell me it just died on her.
So I go over to her desk and try it and yup....nothing.....so i look at the converter and the led is off on it..
I follow the wire behind the desk, and what do you know? the plug is out of the socket...
I plug it back up and and it boots up good as new..
So I tell her "here's your sign' and went back home without saying anything else to her...
Wife tells me when I got back home, that she had just phoned her to tell here that she had unplugged it to plug in the vacuum and forgot about it....