Sweet Cavoodle

We have a cavoodle who is very sweet to us, but reactive when outside. He is good with people but gets overly excited most of the time. But with dogs, it’s different. I think it started when we started bringing him to a dog park when he was 8months old. He used to be scared with bigger dogs who playfully come to him, and now every dog he sees on the street, he just barks at them angrily and fights with them.

We walk him almost every day and has big backyard he runs at home. We want him to get along and socialize with other dogs but it seems taking him to dog park made him too aggressive with them.

Any cavoodle owners who got tips on how to help him get over it?