The first time I saw anyone dipping pizza into salad dressing was about 20 years ago. We were ordering pizza for lunch when a co-worker said - "tell them to include some ranch dressing". I thought she was nuts when I saw dipping a slice. I tried it and it's okay for crust, like a soft breadstick but it's not my thing. I tried blue cheese too, it was better but still not something I order with a pie.