The University of Lethbridge had an unwelcome visssssitor on Tuesday, a small rattlesnake that managed to slither its way into a fourth-floor office.

In a video posted to social media, snake catcher Ryan Heavy Head says this is his “first real rattlesnake call of the season.”

“Apparently this is a snake that has fallen into the control room on the fourth floor of the University of Lethbridge," he says.

"Inside the building is a rattlesnake and I’m going to go pick it up right now.”

The video then shows him being led into an office by a security guard, where there’s a small snake sitting between a bookshelf and a desk.

Within a few seconds, he picks up the snake with a grabber, holding it up for the camera to get a quick look before putting it in a box. And the snake lives up to its name, the tell-tale noise can be heard the whole time.

Once outside, he points to a hill below a concrete pad, guessing it came from a den there. 

“It moved its way up ... and fell down, dropped into the machine (rooms) of the university," says Heavy Head, filming through a grated roof.

He estimated the snake was under two years old.

Heavy Head is contracted by the City of Lethbridge to relocate rattlesnakes that pose a hazard to public safety. 

"There you go snakey,” he’s heard saying as he releases the reptile.

“Sssssee ya.”

For additional information on rattlesnake mitigation visit City of Lethbridge