Leave it, it knows where its going. We have one that comes out on rainy days, he's lovely. He goes home later. He probably lives under a bush in your garden somewhere quiet. Is it wet there? We always leave a saucer of water out near the bird bath for him to bathe in (yes I know I'm animal mad). Once we had two high empty flower pots in the garden without holes in the bottom, couple of inches of water in each, a toad got in each pot and couldn't get out, not a pretty sight.