My Roommate's Shoes Are Missing Their Laces

So yeah, I did something pretty dumb. My roommate and I were having a debate over who should clean the bathroom last night. We got kind of heated about it, and after he went to bed, I thought I'd sneak into his room and mess with his shoes a little. So I took out all the laces from his sneaks and left them sitting on top of his dresser like trophies for myself. He's gonna be so confused when he wakes up this morning trying to figure out why none of his shoes can tie anymore.