The odds are tiny that you’ll experience an  iPhone explosion. But the unexpected can happen, as is demonstrated in a surveillance video this week. The footage was taken in a Las Vegas repair shop. The exploding phone appears in the lower left-hand portion of the frame.

Experts debate whether exposing a phone to high temperature—for example, leaving it in a car— can create a problem. But there is consensus about signs such as  the phone feeling much hotter than usual or bulging. If those symptoms appear the phone should be turned off and taken to a repair shop.