So this conversation happened.
Customer: what lightbulb do I need for this light.
Me: A small screw cap.
Customer: How do you know? I can never tell which one I need.
Me: *talks about lightbulbs for a bit*
Customer: Great, thanks! Now I'll never be in the dark again!
Me: *laughs* I suppose not!
Customer: *angrily* What, do you think it's funny that I didn't know? We didn't all graduate from lightbulb school! And you can't be that smart either if you are working here and not in NASA!
Me: Excuse me. I thought you were making a joke.
Customer: Why would you assume that?!
Me: Because we were talking about lightbulbs and you said you would never be in the dark again...?
Customer: *thinks about it for a second* Oh yeah! That was pretty funny!
Me: ...
Me: A small screw cap.
Customer: How do you know? I can never tell which one I need.
Me: *talks about lightbulbs for a bit*
Customer: Great, thanks! Now I'll never be in the dark again!
Me: *laughs* I suppose not!
Customer: *angrily* What, do you think it's funny that I didn't know? We didn't all graduate from lightbulb school! And you can't be that smart either if you are working here and not in NASA!
Me: Excuse me. I thought you were making a joke.
Customer: Why would you assume that?!
Me: Because we were talking about lightbulbs and you said you would never be in the dark again...?
Customer: *thinks about it for a second* Oh yeah! That was pretty funny!
Me: ...