Animals are too often treated like just another piece of baggage, no more valuable than a suitcase or a mail sack. Missed or cancelled flights are seldom more than inconveniences to human passengers, but to animals they can mean death. The Humane Society has concluded that shippers and handlers will provide humane conditions and treatment only when forced to do so.
"Special Report on Shipping Animals By Air" (1973). Special Reports. 4.