So a customer of mine came to see me a few minutes ago to collect some laptops he's purchased. I always make him a nice filter coffee with my own fair hands.
Me: "Would I rip you off?"
Me: "Right that's it I'm gonna spit in your coffee for that."
A few minutes later.
Me: "You don't take sugar do you?"
Customer: "No, just some spit will do fine thanks."
Now that's the kind of customer we all want? :-D