Hasbro has a line of superhero figures that are perfect for Maxfield and Wyatt. Max's favorite is Spiderman. The Spiderman figure we have came with a cool disk shooter thing that can be attached to the figure's back. We have, of course, lost all of the disks so Maxfield just says that it is a jet pack so Spiderman can fly.
The first picture is how Spidey is supposed to wear the back pack.
Max, being the creative boy that he is, tried to put the back pack on Spiderman upside down.
Max has decided that when the back pack is on upside down it becomes Spiderman's potty.
So now when we are in the middle of a big adventure of battling DR. Octopus and the Green Goblin, Spidey occasionally has to stop and as Max says "Go poopy on the potty." I guess something else besides the "Spider Sense" is tingling.
I find this hysterical and I added the paper for effect.