On Friday night a drunk gets onto a bus. Bus driver tells him its $1.50, and the drunk reaches into his pocket slowly, trying not to fall. The bus driver notices this and steps on the gas causing the drunk to stumble to the back of the bus. Then the bus driver steps on the brake pedal, and caused the drink to stumble to the front of the bus. The bus driver does this multiple time over the course of several blocks, until the drunk tells him that his stop is the next. The bus driver reminds him he still has to pay his fare.
The drunk says "What for? I walked the whole bloody way!"