I was just at the bank today (PNCBank) and of course, I get the grumpy, pissed-off black lady:

teller: "good mornin'..."
me: "HI!! I'm here to make a deposit!"
teller: "aight"
me: "here you go!!"
teller: "nigga, you broke!!"
me: "thank you, i already knew that"
teller: "<hands deposit receipt> here"