Marilyn, that's scary about the walk button! They must be everywhere. We read that they will get into the AC unit and when they "fry," they release pheromones to alert the other ants to come help. Big mess! At least they don't sting, that I'm aware of.
Our neighbors down the street had grass delivered a few months ago. I wonder if they came in the grass or the new landscaping? Anyway, the ants marched up the hill and we all have 'em now!
