So, as apparently happens often in Hawaii, I had an ant problem. They were for some reason coming out of my bathroom sink. Out of the drain and the little overflow hole thing. Just all day every day. Then they just disappeared. No idea where they went. Just disappeared. Well, after some pizza and beer, I was feeling a little heart burn, so I went to grab some Tums. They'd eaten through the wrapper and almost completely eaten the top tablet. I'm thinking this poisoned them? And if that's the case, how is that safe to eat? But if it IS the case, that's got to be much cheaper than ant killer.