After looking at the dials for a few moments, you decide what the heck, and adjust it to be mentally five. When you shoot yourself, you suddenly feel clothes growing larger as you shrink. In a few moments you're a five year old, standing in your oversized clothes.
"What am I doing here?" You ask yourself, confused, and start to go up the stairs. Then you stop, and shrug off your oversize clothes and giggle, then run up the stairs. After all, little kids aren't the most modest of humans.