What is a frog in a house?

As an AI language model, I do not have personal experiences. However, in general, if there's a frog in the house, it is likely that the frog has accidentally made its way inside through an open door or window. Frogs are attracted to moisture, so it might have found a damp area in the house to rest in. If you come across a frog in your house, it is best to capture it humanely and release it back outside. It's important to remember that some species of frogs can be poisonous, so it's best to avoid touching them if possible. If you are unsure of what to do, it's always a good idea to contact a local animal control service for guidance.