If you haven’t heard of the Squirrel Smile yet, lucky you.

It’s an inexplicable trend in which everyone gets video of themselves making a toothy, curled-lip, squirrel-like expression to see how people react.

In this video from TikTok user @kaylaandtrev, you don’t actually see the smile, but the reaction.

“Doing my squirrel smile on the customers,” reads the caption with the view out a fast food drive through window.

The look on this man’s face says it all.

He even seems hesitant to hand over his money.

@kaylaandtrev

#smile #trending #fyp

♬ original sound – Tk

Come on man, he didn’t need this.

He’s lost his appetite.

This is why I don’t go anywhere.

Ice cold reaction.

This is why everybody orders delivery now.

One reason, anyway.

Now that you’ve read that story, check out this one about a delivery driver who took a $400 grocery order back because she wasn’t given a tip.