Those complaints related largely to the size of the animals. For example, Air Canada has a cut-off of 70 pounds for the weight of both the animal and the carrier. Then the animal has to get shipped by cargo. There are problems in that your animal may not necessarily be on the same plane as you; it could go on a different plane and it could come a day or two later.
We heard another complaint about a medium-sized animal that was not allowed in the baggage compartment, as the airlines discontinued allowing these animals to go there. You previously could have your dog, say, go as checked baggage or cargo, but that was discontinued. The agency ruled in that particular case that the tariff was unreasonable. We try to balance the rights of passengers for a reasonable tariff with the carrier's commercial, statutory, and other operational obligations.
So there have been a variety of cases, but we have certainly heard of problems with the stresses that animals undergo in the belly hold of an airplane.