[kaylynb]

How do you tell if a dog is a service dog though? The ADA already allows excluding misbehaving service animals, which should cover a good portion of 'fraudulent emotional service animals' considering how well most people mistrain their animals.

There are legitimate service animals for a wide variety of real conditions that a lay person could not be expected to consider. Dogs that can detect incoming seizures or problematic psychological states, and they could look very similar to an 'emotional support animal' but actually be a legitimate service animal.