Lactose intolerant, but I can handle heavy cream and hard cheese. I can't keep Kirkland vanilla ice cream in the house (it comes in a 2 pack!) I just don't have the willpower to not eat it--and once I eat a small serving, I get an attitude of "oh I'm in for it now! Better make it worth it with a 2nd, 3rd bowl etc.
I also sometimes eat pasta with ricotta cheese in it, and I always regret that.