Snake wasn't on the menu of a Missouri restaurant, but that's what patrons got -- along with a side of rattled nerves.
A reptile, thought to be a boa constrictor, was brought into an eatery in Nixa, Missouri, this week, sending some fleeing.
Lisa Loeffelholz told CNN affiliate KYTV that she spotted a man and a woman holding the snake and "it started to slither down into the booth behind her."
Loeffelholz said she notified the restaurant manager -- who said the couple insisted the snake was a service animal and the restaurant should allow it to stay.
But just the sight of the woman apparently pulling the animal and then handing it over to the man at the table was enough to make Loeffelholz confront the snake handlers about their slippery excuse.
"He said, 'It's my service animal. And I'm allowed to have it because it helps me with my depression,'" she told the affiliate.
The snake may have had a calming effect on the couple, but by no means can it legally be deemed a service animal.
The Americans with Disabilities Act states "only dogs are recognized as service animals."
And if the snake posed a concern for public safety, then patrons could have notified police or animal control, according to Nixa city's communications director, Jill Finney.
"Management didn't know what to do, because they didn't want to violate anybody's rights, and that's understandable," Finney told the affiliate.