Snake in our yard

It’s warm finally. The kids are staying outside a lot, running, playing and exploring. The other day my American husband was clearing some bushes on the back of our yard, and behind the piece of wood, he found a lined snake. Kevin and Sophie immediately grabbed it and played with it for a while. Sophie had an idea to keep it as a pet and put it in the bucket INSIDE THE HOUSE. I insisted that the bucket would stay outside (wise decision). The snake disappeared 1 h later, thankfully not into our bedrooms, but into his natural habitat, our own yard that is.