Extraordinary footage has captured the moment two reported gatecrashers started a "drunken brawl" during a university lecture.
Video captured inside Glasgow University's Bute Hall shows the pair throwing punches and slamming one another into pews as first year students look on stunned.
The clip was uploaded to the university's Snapchat Story earlier today.
Eyewitnesses told how the men brought beer cans, food and even a dog onto campus with them and had been sitting at the back of the class when students arrived for a 3pm lecture.
Although they went unnoticed for the first half an hour, the pair soon drew attention to themselves when they began scrapping, the Daily Record reports.