Well, if you get partially melted ice cream after waiting over 30 mins after the order don’t say everything is fine more then once.
After saying sure it’s fine twice, and the waiter kept going are you sure, my wife said “it’s just ice cream”. Which I’ll admit was a bit snippy. The waiter then said “someone had too much vodka tonight didn’t she”. We were not a fan of that. But, maybe our water needed to have vodka in it.