Advice For Son in Kitchen

Hey guys, need some parenting advice for my unbelievably dumb son. He chewed through his straps again (no big surprise there) and then ran into the kitchen, poured canola oil all over his naked body, pushed all of the buttons on the oven console, and climbed inside.

Luckily he's way too dumb to have actually turned on the oven, but now he's lodged in there and is too slippery to get out. Is there any good way to get a grip on my incredibly dumb and slippery son? Thanks in advance.