If a soldier looks at his wife's/girlfriend's photograph, he is definitely going to be killed.
Policemen run for miles chasing suspects on foot.
Drivers talk to passengers without keeping their eyes on the road, and without faltering or forgetting what they're saying because they should be concentrating on their driving. They also drive in a straight line while swivelling the steering wheel.
Murderers take their time waggling a gun/knife while explaining to their victims the history of what they've been doing and why they're doing it, to give enough time for the cop to arrive and save the day.
A dead baddie is never really dead, not the first time he's been killed. He will surprise you. And, even after that, he may not be dead at all in the event of a possible sequel.