Every weekend I hike with my Pillu ( 11+months , male, intact)...in wooded trails. Its a lot of fun for both of us. I let him sniff around and he is pretty much off leash ( I still keep a check cord on him)...We practice recall , he does great , most of the time. There is one behavior I am now seeing consistently over the last month, which I'm trying to figure out how to curb. He seems to get overexcited and gets into this very rough play, zoomie , jumping, growling, biting mode...which has been really hard to stop. He goes on for a good 4-5 minutes or so. After the 5 minutes, he is fine again and we continue our fun walk in the woods. He is 55 pounds now and 25 inches tall, so not a small dog and it HURTS!! Seems like a behavior from some months back that has somehow resurfaced ( that used to happen on regular walks) ...now it only happens on wooded trails, off leash , after being in there for some time. Anybody experiencing this, and have any ideas on calming him down? And yes its not easy to fold my arms and look away while he is jumping , grabbing and bouncing off of me. I don't get bruised ...no blood...but not fun. The only way I have been able to stop it is again a squirt gun. He does stop with that but wanted to get some ideas from others if they have experienced this and how they stopped it.