We (and when I say "we," I mean Darl) know the guy who played Yuppie #2 in the 1980 slasher film Christmas Evil.
However, Ben Grigg from Geronimo adamantly vouches for Chopping Mall, a tale of survival when a bunch of '80s kids get trapped in a mall overnight.
Christmas Evil is about a creepy dude who spies on little children. His spy victims make him happy, with the exception of a troublemaker named Moss Garcia. Moss drives him over the edge, leading him to indulge his creepiest tendencies, like physically pressing his mud covered face into the Garcia household.