Like many things, DD may not be controllable with constant surveillance.
I’ve been guilty of it too, more’s the pity. It isn’t something I thought about until I more or less quit eating that kind of thing.
The best cure is to probably slather dip onto crackers and ignore the chips. When you think about it, it has to be way more sanitary for the hostess, presumably with clean hands, to be the only one handling the food. Think of dirty hands grabbing the chips, taking too many, some falling back into the bowl...ewwwwwwww......