OK, I will ask again, is the issue you all have is the animal being in the cabin, or that the passengers are not paying to have the animal on board with them in the cabin. My dog is small enough to travel in the cabin and I don't game the system by claiming he is an ESA. I pay the fee required by the airline, (once $900 RT) and he is behaved, stays in his carrier and pretty much sleeps the entire trip. He can hold his potty for close to eight hours with out any issue and at times at home lasts close to ten hours. However, he is getting older at close to twelve years in May and he is starting to have accidents, so I don't plan on bringing him on any more trips.