Fort Lauderdale Battalion Chief Stephan Gollan tells the Miami Herald the man "freaked out and didn't know what to do."
He says firefighter Jeff Kurus put on a sterile glove, reached in and grabbed the iguana. He took it outside and released it into the wild.
Gollan says the department "is the end-all-be-all" when it comes to unique calls.
The department tweeted pictures of the iguana, adding "can you imagine lifting the toilet lid and finding this?"
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