Have you ever been on or near a farm ever, or even talked to (not shout at) a farmer? Pigs squeal for no reason and they squeal all the time I'm sure non-farmer

Have you ever been on or near a farm ever, or even talked to (not shout at) a farmer? Pigs squeal for no reason and they squeal all the time I'm sure non-farmers assume squealing means pain. I live in a rural area with lots of farming. A few people I know come from families that raise pigs and no they do not torture them. Even to the point of having a controlled access entry to the barn to prevent disease coming in from the outside (disinfectant tray for shoes). It's hard work to maintain and raise animals for food farmers aren't going to spend time and effort torturing pigs which are their income. No business person is going to damage their product for kicks. A wheat farmer doesn't drive over his crop and flatten it. Fishermen don't throw dynamite into the water for fun.