fajita effect

We're taught to chew with our mouths closed; but we didn't know it's because some people have murder-like tendencies when they hear the annoying sounds of chewing. Apparently, science has something to do with it.
We know what you're thinking: Another video of Ana Dolaskie chowing down a bag of potato chips— What's new? But she's doing it for the sake of science! And hearing the crunch of the chips could make you hungry too!