"We were totally shocked," he says. Like The Moose, most Canadian bars and restaurants have been using U.S.- ounce shot glasses, which contain 29.6 ml of liquid. The Canadian metric ounce holds ...

A standard, traditional shot ... a Canadian ounce, which, in the imperial system comes out to about 28 ml. Tweter and Wilson thought it was a big enough difference to merit a whole new glass ...

"The shot glasses [we] were using were made by an American company and they were based on an American ounce," said Loose Moose co-owner Kyle Tweter. "So they were too big." Although the Canadian ...