The Office star Rainn Wilson and his wife Holiday Reinhorn are nearing a pivotal point in parenthood – the two plan on toilet training their son, Walter McKenzie, 2 1/2, soon. But there is a slight issue. Rainn tells Jay Leno on The Tonight Show of his son’s potty problem.

Walter does have a code word to alert not only his parents, but himself as well, of when he is pooping.

Rainn says he realizes no progress can be made until Walter can accept when he’s defecating.