That's funny! Only thing is, he's required to do all of his own laundry and he knows that he left nothing in there. But I like that thinking... I will try to come up with something similar!I’d go stick it in the dryer and meet him at the door with a stern game face, and tell him you didn’t appreciate whatever it was he left in his pocket that was now all over the dryer, give him “the look,” and send him off forthwith to clean it up. (I didn’t make that up, my parents pranked me many a time. I think it was because they both were raised in large families.)