[Judge]

Never abort for someone not wearing a seatbealt. Where is the danger to flight? No where! Control malfunctions or interruptions can happen in many different scenarios. If your other pilot is eating a sandwich during rotation there is no reason to abort. A reason to strike them with a club, maybe. But no reason to abort the takeoff resulting in further danger to everyone else aboard. Use common sense in operating a/c and you will be quite happy.