On a serious note: take grip off. Clean bars and soak grip in hot water for 5 mins. Spray handlebar with a light dusting of hairspray and slide the drained grips on straight from the hot water. Be careful not to scold yourself. Should be fixed on within the hour, but maybe longer if excessive water remained in the grip which you was meant to drain first!
Did you wash the urine off first?
On a serious note: take grip off. Clean bars and soak grip in hot water for 5 mins. Spray handlebar with a light dusting of hairspray and slide the drained grips on straight from the hot water. Be careful not to scold yourself. Should be fixed on within the hour, but maybe longer if excessive water remained in the grip which you was meant to drain first!