I know there are people out there who feel that their dogs are their children. They are not.
And while it may be fun to take Skipper out for a run with no leash at a playground intended for children, and while you may be able to explain to me that little Skipper is very friendly and has never hurt anyone and loves kids, you can't explain that to a 2- and 3-year-old as your dog charges towards them.
Leave your dog at home. Or on a leash.
And, yes, this is intended for the ignorant SOB at Peabody Park about 45 minutes ago.