Cowards Die
Isn't that the trope of every scary movie?
What immediately comes to mind is Jurassic Park when the lawyer ran to the restroom and was eaten by the T-Rex while on the toilet.
Look, hiding is a smart and natural thing. Why did the two dudes have to die just because they wouldn't go play savior? They damn sure woulda died then. But somehow the monster heard them huddled in the freezer and not the four loudmouths as they clumsily banged their way out of the diner. AAAAAGH!