when you see a yellow car you have to shout 'BANANA CAR!' and hit the person next to you in the arm. If you don't want to be hit you have to shout 'BANANA CAR NO RETURN!' and the hit them. It is a fun game :)
(Alans yellow car drives past)
Ernest to Arnold - 'BANANA CAR NO RETURN!' And hits Arnold
Arnold 'Dangflabit!'