No shoes, no shirt, no service.

That policy applies to people at most restaurants, and in Canmore, it goes for bears, too.

Surveillance footage from Gaucho Brazilian Barbecue posted to social media shows a young bear run in the front doors of the eatery about 7:15 p.m. Sunday, then turn around and bolt back out.

"A bear tried to come into the restaurant today but we told him, “No shirt, no shoes, NO SERVICE!” the restaurant wrote on its Facebook page.

Kitchen manager Ricardo Lopez Guerra said there were about 40 people inside the restaurant at the time, and at first they were intigued by the bear.

"He was in front of the patio then he came back and then he ran toward the door," he said.

"Everybody got scared, they just jumped on their tables. Luckily the bear hit the glass (door) then he got scared and went back."

Lopez Guerra said the bear left a nose print on the glass.

"At first it was kind of fun ... something that doesn't happen very often, but when you saw him actually coming inside the restaurant, that was kind of scary," he said.

Staff had left the outside door open to invite customers inside, but left an interior door closed as it had been raining.

Lopez Guerra said the bear appeared to be a juvenile.

"It was a medium-sized bear but his claws were big," he said.

"He was the size of a big dog."

After leaving the restaurant, Lopez Guerra said the bear made its way down Main Street before escaping into the brush.