I used to work at a doggy day care! It was a lot of fun, plus my dog, Marley, got to go to work with me = )

I wasn't working there any longer when Daisy was a puppy, but I was working at the humane society and they did puppy socialization/play time at their training center! That was the best! They probably had 20 or so puppies just sprinting around and playing. Total cute-ness overload.