Perhaps you recently found yourself at a Canadian bar where you ordered a gin and tonic. Perhaps you felt like splurging, so you asked the bartender to make your drink with Bombay Sapphire.

And let’s say you took one sip and thought, “Wow — that was a superheavy pour.”

If this actually happened to you, there may be a simple explanation.

On Wednesday, the Canadian Food Inspection Agency announced that a recall of Bombay Sapphire London Dry Gin, issued the previous day, had been expanded nationwide after officials discovered that one rogue batch had managed to escape the bottling plant much stronger than it should have been.

In emails, Amy Federman, a spokeswoman for Bacardi, which owns Bombay Sapphire, said that “a few cases” hiding somewhere in Canada contained gin with an alcohol content by volume of 77 percent, rather than the 40 percent shown on the bottles’ labels. That means the recalled gin ended up being 154 proof instead of 80 proof.