I had the pleasure of staying home on Monday with a wonderful bit of food poisoning. Luckily, I was feeling better by the afternoon. So I thought I might go help my grandmother. She had asked me to come over at some point and help her set up an email account.
Normally, email is something we all learned how to do back in 1998. But she has never really had a use for a computer, let alone the internet. So I was teaching someone who only had the lightest grasp of how to use a computer. It took me an hour and a half, but in the end, I think she knew what she was doing.
The reason I relate this story is to show you that other people know different things than you. You would think that everyone knows how to use email, but I would bet that my grandmother was not the last convert. There might be things that people ask you about, that you think are so obvious they must be messing with you. But getting frustrated or upset because you have to explain something so obvious only causes trouble.
It makes you feel poorly physically because you work yourself up. It makes the other person feel dumb or just plain negative about themselves. It hurts the relationship you have with them. It might even make others see you in a worse light.
Just remember, no one has had the exact same life as you. Others might not have paid as much attention as you to a certain sport/movie/event. If someone asks you for help, they are paying you a complement. Return the complement by educating them.