Hi, I have a rescue cross lab-staff, but is lab size, he is quite good over the park, and stays near. However if he sees another dog, regardless of how far away, then he is off. I do try and get him on the lead before he 'disappears'.
If there is no other dog, he will come when called, however when chasing another dog, he ignores me, and straight afterwards I put him back on the lead.

I dont mind him meeting other dogs, and generally he is very sociable with other dogs, unless they jump up at him, regardless of how small, he cannot tollerate these dogs, and will get annoyed, he loves dogs he can run around with. He also does not appreciate his size and when he goes bounding up to smaller dogs, they are intimidated.

The problem is that sometimes the other dog may be on a lead for some reason, and this causes anxiety when my dog approaches, and if he is far away, it will take me a while to get to him.
Also I have found nothing that I can do over the park that interests him, at home he plays with tennis balls, toys etc but over the park, he is not interested in toys, sticks, balls, or even food.
I would just like a few suggestions so that I can enjoy being over the park, rather than being like a constant radar, on the look out for dogs that he should not be saying 'hello' to.
Thanks for any info.