Police said the man caught the unexpected visitor Monday night when he went to the loo, flipped on the light and saw the reptile on the toilet seat, the New York Daily News reported Tuesday.
"There's a giant snake on my toilet," he told police when they arrived at his apartment.
The police caught the slithery sleeper, which turned out to be a non-venomous corn snake, bagged it and turned it over to the animal control authorities.
Police say they understand the panic felt by the man, not identified by the Daily News, who told officials the snake wasn't his and may have worked its way into his bathroom through the plumbing.
"Look, anytime you walk into your bathroom and find a big snake staring you in the eye, it's going to spook you," one officer said.
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