“The Islamic prophet Muhammad specified that one should use an odd number of stones (preferably three) to cleanse the anal orifice after defecation and then proceed to a different location to wash it with water.”
I think I saw Fred and Barney do this on a Flintstones episode!
These fools had better be careful.
Soon, a nervous passenger might feel the need to kick one of these monkeys to death for trying a stunt like this......