This is a video from Youtuber My Mountain Husky, who filled his home with 2,000 tennis balls, then set up cameras (including on one dog’s back) and left to see how his huskies Kakoa and Sky would react to this canine version of a very shallow Chuck E. Cheese ball pit. Honestly, they seemed more confused than anything. Kakoa repeatedly tries to get Sky to play with her, but Sky isn’t feeling it at the moment. I like how after they both make sure their owner actually left Kokoa immediately checks the kitchen counters for food. Classic dog right there! Still, overall their reaction was not that fantastic, so if if you were considering robbing a sporting goods store you may want to go for the YETI products instead of all the tennis balls, because they might not be worth it.
Keep going for the video, very serious butt sniff at 3:00.