A pizzeria mistakenly sold pizza laced with THC. Here’s how it happened.

A pizza shop in Wisconsin shocked patrons when it apologized for inadvertently selling pizzas containing THC, the primary psychoactive component in cannabis. They figured it out when customers reported feeling odd after eating slices of their pie.

“This is incredibly serious to us and we can’t imagine anything worse than betraying the faith that our customers have in us to provide a product made with utmost care and concern,” Famous Yeti’s Pizza co-owner Cale Ryan said in a statement posted to Facebook on Oct. 25. “If we lost your faith in us and we never get to serve you again, I completely understand.”