paper towel trick

i was making easy mac today, i put it in the microwave for about 5 minutes and then went back into my room. shortly after, nic yells to me from the kitchen, “yo, your macaroni and cheese is done”. so i walk into the kitchen, see that the microwave is still on and theres still about two minutes left. then, as im standing in the kitchen with him, disappointed that my mac and cheese is unfinished, he says “oh, by the way, we need more paper towels”. so i pointed out that two feet to his left was a full roll of paper towels, he then started laughing hysterically like he had just said the funniest thing in history. i was furious, but i just took my easy mac and went back into my room. i just don’t get it.