Weird unverified fact about ants

I own a house. It’s a great house and I feel very lucky to have it. However, there is this one thing about the house that we discovered shortly after moving in three years ago, and it is driving me bonkers. Every once in a while, usually on a hot summer evening, when the rest of the family is in bed, I’ll creep around the house, find a likely spot, crouch down, squash my face up against a wall,…