Okay, I'll admit it. I used to have weevils in my pantry occasionally. In the flour, or baking mixes, etc. But years and years ago I read that if you bring those kinds of things home from the store and immediately put them in the freezer for a few days, the freezing temperature will kill off any larvae that may be in the package, and they will never hatch into adult bugs.
I've done just that ever since, and I can't remember the last time I've seen a weevil in the house.
I guess we've been eating some larvae...but I'm okay with being in denial about things like that.