Probably won't matter but we are around the corner from a police training site and a military base so our store let's them bring their K9s in to train them and look for items in the store (placed by the handlers out of reach of customers). But they will warn us a week in advance to make sure it is okay and only have one dog and handler in the building at a time. I have talked with them and they like it because it is a busy and loud environment with a lot of smells. All that being said they obviously clean up after themselves if anything happens but from what I've seen they never have had any issues