It's also the method they use to train military working dogs. Find dogs with a huge ball chasing instinct but only reward occasionally and randomly. The dog wil

It's also the method they use to train military working dogs. Find dogs with a huge ball chasing instinct but only reward occasionally and randomly. The dog will work so damn hard to get that ball toss. Poker machines are built the same, as are the recently banned loot boxes in video games.