I’m hoping for some help with my 2 year old neutered boy. We’ve had some issues in the last year or so with reactivity, mostly with leash walking, puppies, or when startled while sleeping, but overall he’s been a good boy and his issues seem to improve as he gets older. He’s never bitten a dog or human to break skin (only lunge or nip at certain dogs if they get too close). He’s a very friendly boy and we keep him very well exercised (3 hours off leash a day). He goes on hikes almost daily with human and dog packs without any incidents. Tonight, I did something very silly - I was playing with him and pretended to play bite his abdomen as he was lying down. It sounds very silly but it is something that my husband does with him all the time and it’s a fun game they play. I don’t usually do this and I guess I startled him. He growled, lunged and “bit” at my face. I use quotation marks because he didn’t bite down hard… it was more like he pulled on my cheeks with his teeth, but it was definitely aggressive and it happened in a split second. He did break skin and left a couple very shallow lacerations and a bruise to my cheek. I do not need stitches or anything but it is swollen and painful. I picked him up and put him in another room for time out for 20 min. When he came out, he was wagging his tail and licking me, and did not show any signs of aggression. I am just heartbroken that he would show aggression against me. I know this is my fault. I obviously scared or startled him, but I am shocked at his reaction, since this is something that my husband does with him regularly and he loves it. We did tons of bite inhibition training since puppyhood as per Ian Dunbar and he had been really good until now. I’m not sure where to go from here - I’ve been scouring the forum for what to do after bites. Some say to be dominant and let the dog know you’re boss. Others say to be gentle and use positive reinforcements since the dog is likely fearful. I do think his aggression was fear based but the fact that he lets my husband do the exact same thing makes me feel that maybe he doesn’t respect my authority. I’m just not sure if this is normal behavior or if there is something wrong with our boy. I’m also not sure if this is just a reflex like sleep aggression or something more. I’m scared the aggression will escalate. He usually sleeps in our bedroom but we didn’t let him in tonight as I’m still a little rattled and don’t feel comfortable having him this close. He’s just been whining outside our bedroom and it’s breaking my heart. Hoping for some advise!