Since I am a computer science major, everyone thinks that means I know how to fix every electronics problem they have. This is especially bad with phones, which I am particularly bad with. I usually end up cursing at the bad interface design, looking through their help program with about a 50% chance of finding the problem and fixing it.
I really hate the look of betrayal that says "but I thought you were smart".
I really hate the look of betrayal that says "but I thought you were smart".