Religious Pizza Puns

So I work at a pizza shop. This middle aged man, typical dad polo shirt, white New Balances, etc... comes in with his wife. They want subs. So my boss is taking their order. She asks him if he wants any cheese on his sub. He responds "yeah, that religious stuff". My boss looks up at him confused and says, "what?". I immediately jump in and say, "Swiss!" My boss looks even more confused. The guy is smirking and says, "yeah, the holy kind!" His wife lets out the biggest groan as him and I crack up. My boss just shook her head and walked away in disgust.