You will find this sign on the gate entering my backyard:
It's a little mossy, like most things in the Pacific Northwest in the spring time. It reads that "This area is safe for children, pets, and all living creatures." My regular old urban backyard doesn't look like most people's yards. The grass that once grew has been replaced with straw and shavings. The playhouse and swing set have been repurposed into shelter for chickens and ducks. And while bugs and mice may be at risk due to the poultry inhabitants, it is a pesticide-free area and most living creatures will find it to be a safe space.
You can get your own sign from Mountain Rose Herbs for $8.50 plus shipping.