A friend was at university final exam for pharmacists, in the 70's. It had a large number of last year students and was in a lecture hall. The tests had been handed out and the time was about to start when there was a loud and rhythmic fart. There was a stunned silence, The culprit, a guy leans foreward to a hot looking blond and says " It is o-kay sweetheart, I will take the blame!".
The hall went wild with laughter. The test had to be canceled.