She opens her purse, pops in 50 cents, studies the machine a short while, pushes the Diet Coke selection, and out comes a Diet Coke. She places the can on a counter next to the machine.
Then she reaches in her purse again and pulls out a dollar and inserts it in the machine. Studying the machine carefully, she pushes the button for Coke Classic and out comes a Coke Classic and 50 cents change.
She immediately takes the 50 cents and puts it back in the machine, studies it for a moment and pushes the Mountain Dew button. Out comes a Mountain Dew. She places them both on the counter next to the Diet Coke.
As she is reaching into her purse again, the business man, who has been waiting patiently for several minutes by now, speakd up. "Excuse me, miss, but are you done yet?"
She looks at him and indignantly asks, "Well Duh! Can't you see I'm still winning?"