I was buying some groceries yesterday at my local supermarket. The queue was long and I waited patiently. When I got to the front of the queue the lady scanned my goods. I got my credit card out ready to pay. Normally the check-out-chick would ask by what method I would like to pay, i.e eftpos, credit, cash. This lady just looked at me so eventually i politely said "credit thanks".
She replied in a dreary drug induced coma kinda way, "Yeah, I kinda guessed that when you got your credit card out".
I felt like saying to her "Look, you're a 30 year old check-out-chick with a hairy chin, how I am supposed to know that you are smart enough to work these things out, I don't even know if you are able to put your own pants on in the morning! Tell me, who puts your pants on!!??."
But I didn't, I said "...ok then". Damn I wish I wasn't so polite!