A woman was standing in front of a soda machine outside a store. After inserting sixty cents, a root beer came out. She placed it on the ground, put in another sixty cents, pressed a button, and a cola appeared. She repeated this process until a man waiting behind her grew impatient.
"Excuse me," he said, "could I get my soda? Then you can go back to whatever you're doing."
The woman turned and replied, "No way! I'm not giving up this machine while I'm still winning!"