[Wallee]

Today Wallee had the opportunity to go to a play group supervised by a trainer. There were all ages and sizes of dogs there. Well out of all the dogs there (probably around 15) he was the ONLY ONE who continually barked for the ball to be thrown. He was so loud that one of the bigger dogs tried to get him to stop on a few occasions. Wallee listened to this dog when she pinned him down and the trainer kept a close eye on them but soon as that dog backed off he barked again for the ball to be thrown obsessively. The trainer said the other dog was annoyed because that is unstable behaviour and it can upset the pack. None of the other dogs barked like that and I was a little embarrased but continued to let him play telling him NO and waiting for a glimpse of quiet before letting him have the ball again. He was the only one also who chased the balls for the whole 2 hours. Needless to say he has been wiped out since we got home. I really want him to be able to be with other dogs and have fun but am a little concerned with his excited barking. He is not like this on walks around other dogs.
I gave been thinking of taking him to
A----obedience school
B---doggy daycare
Anyone have any advice on how to fix this???? I worry he will really cause himself to get hurt if I can't get him to calm down. Oh and lately, he gets that excited when I take him to the pet stores as well.