Tito Ortiz: Elevator Nightmare ... We're Trapped (Please Don't Fart)

Scary moment for MMA superstar Tito Ortiz ... when he was trapped in an elevator in Houston with a group of people for nearly an hour ... and begged the people inside to please don't fart!

Tito was on a media tour at a CBS radio station -- giving away tickets to Bellator 149 in Houston -- when the elevator came to a grinding halt ... trapping at least 5 people inside.

Tito turned to social media to call for help -- and offered tickets to the show if someone came to save the group.

Eventually, the Houston Fire Dept. showed up and saved the day ... and the heroic moment was captured on video.

So, do they get tickets?