Easy, Free DIY Mental Stimulation Activities to Stop Biting, Chewing, and Hyperactivity in Your Golden Retriever Puppy. I remember sitting on my kitchen floor, staring at the shredded remnants of what used to be a perfectly good dish towel, while my 3-month-old Golden Retriever, Murphy, sat nearby with that classic “guilty” look—tail tucked, ears back, eyes darting away like he was trying to figure out how to plead the Fifth. Honestly, I wasn’t even mad. I was exhausted. I had already walked him twice. We played fetch in the hallway. I tried the “ignore the biting” thing. Nothing worked. He was still an ankle-biting, furniture-chewing, sleep-depriving little fur missile. And the worst part? I felt like I was failing him. If you’re reading this because your golden is currently trying to eat your baseboards or treating your hands like a chew toy, I get it. Completely. The problem isn’t that your puppy is bad or aggressive. It’s that their brain is growing faster than their bod...