I once boarded a 5 hour flight only to realize I was seated next to a woman with a yappy little dog. She looked like something out of a reality show. Dressed head to toe in bright pink with 4 inch heels and 1 inch nails, wearing way too much jewelry and perfume. I was ready to cry. But then the FA came along to check her dog carrier, which was apparently not compliant with requirements (purse type which didn't close completely). She was told that the dog couldn't fly until she got a proper carrier. She left the flight and I got the row to myself