The actor was in the right place at the right time to capture the moment police at LAX in Los Angeles tasered the man as he ran through the airport.

Troyer was waiting to catch a flight to Ohio when the drama unfolded before him and he sped after the guy on his motorised scooter, hoping to impede him in some way.

The unnamed suspect, who was ticketed for an Alaskan Airlines flight, was taken to a nearby hospital. He will be charged with trespassing and assaulting an officer.