If you're a Chicago sports fan, watch your back.
On Tuesday, Ellen DeGeneres played a prank on Cubs fans by sending a member of her team to the Cubs merchandise store at Wrigley Field to act as an obnoxious, first-day-on-the-job employee.
Now, Bears mascot Staley is joining in on the fun.
Taking advantage of his furry self, Staley goes into camouflage mode by acting as a toy in a giant claw machine at a local arcade and scares young fans who try to grab what they think is a large stuffed animal.
Their reactions are priceless:
Which Chicago sports fanbase is next?