You and computers! Sounds like you have kind of a love-hate relationship with your little beasts!
Sounds like you need someone to write a script that pops up anytime you want to install, delete, uninstall or change anything...maybe a big window that says something like:
WARNING! You are about to delete a file...are you SURE you want to delete this file?
You hit "Yes".
Are you ABSOLUTELY, 100% POSITIVE you want to delete this file?
Have you made SURE that this file deletion is SAFE?
OK. Click "YES" then, but don't say you weren't warned!
Just razzin' ya!
Actually, one of the best ways to learn what NOT to do is when you do something, and then say to yourself...."hmmmmm....I shouldn't have done THAT!"
I've said that many, many times .