A blonde walks up to a Coke machine and puts…

A blonde walks up to a Coke machine and puts in a coin. Out pops a coke.
The blonde looks amazed and runs away to get some more coins. She returns
and starts feeding the machine madly and of course the machine keeps feeding
out drinks. Another person walks up behind the blonde and watches her
antics for a few minutes before stopping and her and asking if someone else
could have a go. The blonde spins around and shouts in her face: “Can’t you
see I’m winning.”