The battle of the genders
We know that women take longer to prepare for work, as their morning routine includes more grooming than a man’s. For this couple, it was always the same in the morning: the woman would wake up earlier, prepare for work (while making noise) and leave the house, and the man was the one who had to make the bed.
This went on until one day, this guy decided he’s had enough of being the house maid, and from this point forward, he was going to make only his side of the bed. After all, it doesn’t seem too far that he should be the one to make the bed every day, only because his partner gets up earlier. It’s not much of a revenge, but we bet he was feeling pretty satisfied with himself.