I really hate rude people.

-Don't call for me by yelling 'hello? excuse me!' then tell me to wait while you finish looking around. You clearly weren't ready to checkout, so there was no need to yell for me. Being impatient really isn't necessary. Your plane isn't leaving anytime soon. Waiting an extra 30 seconds is not going to kill you.

-Asking me a million times when I'm going to open isn't helpful. The more you ask, the longer it will take...and I'll purposely go slower. Staring at me doesn't help either.

-I realize coffee is like crack to you and you need a cup NOW. It takes 2 minutes to finish brewing. You won't die within that time without it (unless i kill you for annoying the crap out of me).

-Don't eye your change suspiciously then count it to see if gave you the right amount! I just counted it to you, in your hand!