Bear Boy, teacups, and picnics all at the Dog Park

So I thought today I might take Bear to the dog park because he loves it so, but the weather didn't cooperate with that plan.  And I remember the last trip to the dog park last week.  We get to the park and get inside the fenced in area for the smaller dogs and there is a couple with their two little teacup chihuahuas.  This couple decided it was a bright idea to have a picnic on a blanket in the middle of the enclosed dog area.  Well, my Bear boy he can hear a bag containing some type of food rustle a mile away and be there in 2 seconds to beg for food and if you drop any don't worry about even bending over to pick that up because it's long gone.  The guy had a cheetos bag laying on said blanket and Bear just runs up to it and sticks his nose in the bag.  Well, what did the guy expect when you eat on the ground with a bunch of dogs running around?  So I called Bear boy off, which I might add is very hard to do when there is food involved, and he left the food alone for fear of getting in trouble, but as he leaves their picnic blanket he decides that 2 feet away is a great spot to drop his little lincoln logs.  The girl seemingly disgusted says to me, "Right beside our lunch!"  Well, what did the girl expect when you picnic on the ground at a dog park?  So my wonderful Fire Boy takes the bags provided for such occasions and scoops up the logs as quick as possible so as not to bother the couple's romantic picnic at the DOG park.  Bear boy goes on his merry way completely unphased with the chaos he has caused.  Bear boy is a social butterfly, so I think we are in the clear as he runs from person to person, dog to dog, saying hello in his lovable doggy language...until he meets one of the teacup chihuahuas of the cute cuddly couple picnicing on a blanket a few yards away.  This goes to show how smart my dog is, even if I was horrified, but my dog knows sissy when he sees it.  Bear boy decides to show this teacup who's boss, you know, playing a little dominate male if you catch my drift.  Poor teacup.  So again I am yelling at my dog, the dog park terror of the day.  Afterward, I am feeling sorry for the couple picnicing at the dog park because of my dog's seemingly bad behavior, for my Bear boy who just came to the park to be a dog and quite frankly was doing all the things a dog does with these sort of temptations, and well for myself because I felt like a horrible parent yelling at my dog every five minutes on a beautiful day and embarrassed because my pup doesn't have better manners.  Needless to say we didn't stay too much longer.  But I wonder about these teacup chihuahuas because quite frankly I feared that I would step on them with my size 6 foot and squish the little rats.  Mind you, chihuahuas are cute dogs that are dogs too and I guess can come to the dog park just like any other dog, but they just aren't that sociable.  Really, they are more territorial and skittish.  Not a good combo for the dog park.  And as Fire Boy put it "They should be playing with hamsters."