Cows and hogs

I was just talking about that in another post. I have seen a good boar take refuge in a group of cows with a bulldog hot on his hind end. Ive also had traps set at a cattle farm and the farmer always said they were hanging around his cows. Then one day i went to check some traps and there was a HUGE sow and her piglets in the broad daylight just easing around with the cows. I believe that over time either the pigs think that they are cows. Lol. Or they think that if the cows are safe out there then they will be to. This boar hog that i was after that kept running to the middle of the cows would let me get crazy close to him with the dog. Like within 10 yards or so. He would only run if the cattle spooked or when i let the dog go. It was the craziest thing ive ever seen. We also bought a house on the back side of the cattle farm i was just talking about and my wife said she saw 3 hogs with our cows one day. By the time i got up there they were gone. But i honestly believe they were there. We live on the river surrounded by thousands of cows and a pretty good hog population. I think that sometimes they just do what the cows do for whatever reason.