Guh! Puppy!!!! Sooo cute I bet! I love animals and have always had them. At the moment I have a chihuahua and a beagle (both raised in the daycare). I've just relocated from a home in the country to one in the city and clients are totally different here. In the country, everyone was cool with the dogs. Many picked me BECAUSE of the dogs. Here in the city, they're not so keen and I have to keep my dogs in a separate room. It may be better for you, with the puppy being so excitable, to keep him away from the kids until a very quiet time, like watching a movie together....somethin g where the kids are all super relaxed, calm and otherwise a bit preoccupied. The problem with puppies is they tend to bite in play with those sharp, sharp teeth. Whether it's in play or not, a parent is likely to freak out if there's a puncture or if someone goes home and announces 'puppy bit me!". You could try, during one of those quiet times possibly holding puppy on a short leash so you can control his behaviour to some degree? And, for the kids, very firm rules need to be in place and strongly enforced. My dcks are never, ever allowed to approach the animals. They are only allowed to pet my dogs if the dog comes over to them. This will get the idea of chasing out of the way over time. And they are never ever allowed to disturb the dogs when they are on their dog bed or asleep. So far, it's worked for me. Hope this helps a bit