To be fair everyone enjoys a play now & then, as long as it is safe to do without putting anyone else in danger.
I will never forget the look on a brand new 911 C2s drivers face as he got absolutly battered by a manky old F reg Sierra
More fun is playing with the lads who are absolutly desperate for a race, my favourite trick is the "False start"

, just before the lights change give it some big revs & nip the clutch, then stop immediatly, had a few cars shoot away straight through a red light