True story...
I had a dog who was a great traveler. On the road, he loved eating a plain hamburger and drinking ice water from a paper cup...
However, he would not eat McDonald’s cheese...He was fine with their regular hamburger, but rejected their cheeseburger...Had no problem with any of the other brands of fast food cheeseburgers...Wonder what he knew that I didn’t...
And often we would have to get his order redone because they would put cheese on it...
The dog knew his stomach didn’t like anything that smelled of cheese.