Have a ban/exception list of what can/cannot be brought on the plane without prior airline approval, CHARGE for the plane ride for the animal, the animal has to be in some sort of containment, AND let the passenger know the the animal might have to ride below deck. The passenger would have to acknowledge this at time of ticket purchase.


The animal not riding in the lap of the passenger and having to pay for the ride should resolve a lot of this.

Wendell