“The judge said the term “joyriding” was totally inappropriate in this case. A more appropriate term was “playing Russian roulette with the lives of the innocent” (from the BBC)

I’m not convinced the judge is right: his phrase sounds infinitely cooler than ‘joyriding’. Maybe something like ‘mindlessly topping some poor fucker in a doomed attempt to pretend you’re some kind of exciting person and not a useless chav waste of space’ would be better.