somebody has to do it

Tonight as he was playing Construction Site Dennis ('struction site Dennis, in his words), I asked him if he needed to go to the potty. He said no, he needed to build. I told him construction workers took breaks and that's when they went to potty. He said "no, that's when they play". I told him they had special potties just for construction sites called port-a-potties. He was very excited and said "I'm going to build port-a-potties, Mommy!". Now there's a career choice. I'd rather build them than clean them, for sure!