We're traveling south with our 12 pound maltese/yorkie mix and he'll be traveling by airplane (in the cabin with us) for the first time. We've got the airline approved travel bag, meds to relax him, a reservation with the airline and an appt with vet prior to travel. I've heard of awful things happening to pets so I'm a little concerned. Anyone have prior experience and/or advice that they would like to share? Thank you in advance!