INTERNATIONAL SYMBOL FOR PORT-A-POTTY

A little potty humor, because my son & his family are coming to visit today.
Our grandson loves jokes of all stripes, especially potty
 humor. 

The last time they visited, my youngest grandson beaconed me into the bathroom.  He told me his mother only allows potty humor in the bathroom. Then, he proceeded to tell me a "dirty" joke .

I am just glad we did not need to go to this port-a-potty to
share the joke!