Mum walked into the bathroom one day and found young Johnny furiously scrubbing his d*ck with a toothbrush and toothpaste. "What the hell do you think you're doing, young man?!" she exclaimed. "Don't try to stop me!" Johnny warned. "I'm gonna do this three times a day, because there's no way I'm gonna get a cavity that looks and smells as bad as my sister's."