Just creepy or a swinger?

We went to a restaurant in Calgary for lunch. Drinks, sandwiches, nothing out of the ordinary. Until the bartender showed up. He shook my hand, which both of us thought was a bit odd. (Thankfully, I washed my hands before the food came.) Then he was really friendly and inquisitive about us, our trip, etc. When he brought the check, he also brought us his card... We paid cash so there was no way to track us down.