When a previous experience in the restroom with low quality toilet paper results in dinglberries so large that one cannot proceed to take a shit; this then will require immediate removal of the berries so you will be forced to take a shower in a non-familiar location without the proper resources to get the job done, so only one option remains.... your hand

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.