I'm becoming scared of my dog's behavior - Help!
My dog is 1yr old, 80ish lbs, She's (in largest % order) A mix of Great pyr, Golden, newfoundland, lab, pit and maybe some small others. She has these episodes where she jumps to bite me and will not stop going at me unless I pin her to the ground and hope its overwith when i let go.
It's frightening. I'm not sure what it is that sets her off, maybe frustration?? And because I can't pinpoint it, I'm not sure how to stop it! She never growls at people or other dogs, she's wonderfully behaved at dog parks, she's generally OK around the cats and super excited about people (once settled she just wants belly rubs) She does OK for the most part on a leash for walks except for pulling the first half of the walk.
It's just these episodes, like tantrums, that have me contemplating of rehoming her for fear of mine and my child's safety. I'm not bragging at all but I've been able to grab hold of her collar and hold her down til she's calm, so idk if i'm strong or what but it's tough considering she's 80 lbs and rolling /wiggling while trying to bite my hand at the same time. She isn't growling, or trying to bite and grab,/clench. It's open mouth mostly with enough pressure to hurt.
We were at the beach today with my daughter and our dog went into the water for the first time. She was on a leash, but there were other dogs off leash, roaming free. She'd never been to the beach so she was trying to figure out how to walk in water. She ALMOST swam but not quite. She definitely barked towards other dogs and pulled the leash (but it's the same thing she does when we get near a dog park gate, just excited and wanting to play) I had to redirect her quite a few times when she was trying to get near the other dogs, mini walks in the other direct, in/out of the water. But when we were getting out of the water the last time she started biting the leash, then me, then i grabbed the handle on her harness and then her collar with my other hand, she rolled on her back, got up, jumped on me to be on two legs, and this just went on for a good 2 minutes until I pinned her, she stopped and we finally left. She's done similar on leash walks (but i step on her leash to stop her from jumping up and biting my arms) and if i play tug with her or fetch in our fenced in yard, she'll sometimes completely disregard the toy and come at me instead. But today was the worst it's been, and I'm so confused and upset and terrified.
Anyone know what this could be?? I'm thinking it's frustration combined with over stimulation? (Free roaming dogs like a dog park, only she's on a leash=a bit pissed off)?? Is there any way to stop this, correct it? Is this puppy behavior or am I right to be concerned?