pilnick:

A 14 year old boy in India arrives at the hospital complaining of pain and dribbling urine.
The doctors find a nearly 1 inch long and 0.5 inch wide wide fish in the boy’s bladder. His story? He was cleaning his fishtank and was holding a fish when he had to go to the bathroom. While peeing, the fish slipped from his hand and entered his urethra. Right.

The article ends with this nugget: “After the removal of the fish the boy’s symptoms disappeared, but he was subsequently sent for psychiatric counseling.”