Don't ever leave it alone with another animal or child. Dogs know they can get away with things when you aren't watching, and they just get too excited to be around little ppl without a moderator supervising. You may have the best behaed dog you've ever met, but a dominant personality or fight over a toy could make for a big mess for whoever comes home first to find. My friend called me a month ago sayin her bully killed her kitten while she was gone. The dog was outside and the cat that has lived with them almost a year, had somehow sneaked outside unnoticed... Sad but true story. It's in their blood.