Sports fans have a tendency to harm their cellphones or tablets while watching a game on TV or in person, according to an online survey by SquareTrade, a company that insures these devices. One in ten adults reports damaging a smartphone while watching or participating in a sporting event. They spent an estimated $2.4 billion to fix those damaged phones last year.

“Sports fans are dangerous to mobile devices,” said Ty Shay, SquareTrade’s Chief Marketing Officer. While alcohol and passion play a role in this (15 percent of those surveyed admitted to damaging a smartphone in a fit of emotion) a lot of sports fans simply appear to be clumsy. One in five said they’d dropped a cellphone in the toilet. It turns out that Seahawks fans are 11 percent more likely to fumble the phone than Patriots fans.