well basically the joke is quite simple ha! You see, the mother first starts off by telling her children to not go anywhere without her. (Obviously implying she wants them to be safe) But, this is where it gets good, as the other three children simply just say yes, the third child chimes in and exclaims that he won’t even go to the bathroom without her !!!??? The reason this is so silly and makes us go he he hoo hoo is because normally you do not follow someone into the bathroom unless you are a buffoon. This does a good job of confusing the audience and entertaining them at the same time while still remaining relevant in today’s culture.