He rolled off the bed.

Question: How does a laptop roll off a bed? Answer: with a loud thud.

Okay, okay. Just to clarify, Buboy (my laptop), was in his carrying case, inside his backpack-home. In a frenzied moment of dad-is-downstairs-honking-the-carhorn-hurry-up, time stops for a split second when out of the corner of your eye, you see your backpack threateningly tilt to the ground from the bed, and then magnetically connect to the floor in the loudest eye-widening thud your fluttering heart will hear.