Schooled
Quick, name a trade that if you fail it usually means jail. Give up? Hel-lo! Image clue right there -> Not that picking a lock is difficult- not if you have a brain. Day 5 of our 12 Days of Dumb takes us to school - in a box. A lock cracker's kit with a few flaws.  Find them and pull up a cot behind bars. One took the time - because in slam there's plenty of it - to write a product review! Told ya. Brainless.

Music heard: Bob Rivers & Twisted Radio, Walkin' 'Round in Women's Underwear and Ray Stevens (boy, you've been missed!), Nightmare Before Christmas