There's something incredibly hilarious about watching the “Impractical Jokers” try their hardest to embarrass one another, especially when a performance goes horribly wrong. That said, not every mistake on the show is lighthearted or funny, particularly one back in Season 5 that almost left two cast members seriously injured.
The episode in question is the Season 5 finale, which saw several of the jokers taking on an X Games-inspired obstacle course to help raise money for a charity of their choice. During an interview on a podcast, Brian “Q” Quinn, revealed that he broke several ribs while preparing for the obstacle course, after accidentally flipping his quad bike.
With Q sidelined for the actual obstacle course competition, his co-star Joe Gatto smashed his head against a door during his attempt at the course and stayed on the ground for a few moments after the hit. Joe ended up being okay, but later revealed he stayed down because he thought he was going into cardiac arrest.