ACM316 "2D Box Lifting plan"

My character has a kind of cocky personality; he does his manly stretches to lift a box of what is thought to be his clothes, but when he finally lifts it, it turns out that the box isn't as light as he thought so he struggles with lifting it, and is all embarrassed because his friends are on the side watching. Ends up they stuck a bunch of weights in the box when he wasn't looking...