Not quite as mad as chris` but quite funny at the time, i was in wales
and my brother and myself were driving down this super narrow country lane, we got to an open stretch and we gunned it but there was a husband and wife out for a sunday cycle, but my brother had a brain wave, i saw him winding down his window and i thought he was just going to abuse them, but he decided to slap there arses at 80mph, we couldnt stop laughing and pulled in for a quick pint, and guess who came in 10 minutes later and sat at the table behind us.