After several incidents, UA has become my "don't even think about them" airline. All airlines have some issues occasionally... but putting a puppy in an overhead baggage lock? The "per 10,000" is a more accurate way to look at it as obviously they carry the most pets. One would think more experience would lead to more expertise... but no.
El Al managed to drop Cara's crate 2 times and Moose's once. We were beyond livid and distressed over it. However, no one else had issues so I chalk it down to bad luck. Still, If I fly a pet with them again, I'm going to raise heck up front about the last time and video them loading and unloading.