Neil the roving UHub commuter e-mails this account:
Last night around 7:00pm I get off the Orange Line at DTX and see some frantic ~20 year old kid frantically running around and asking the janitorial staff questions.
I try to be helpful so as we're heading down to the Red Line southbound, I ask him what's wrong or if he needs directions.
He says, "Oh man, I just left my cat on the train!"
I ask if it was in a carrier.
Yes, he was bring in back from the vet's after being neutered.
He had left the cat on the train and walked all the way up to the Orange Line before remembering it. Cat travels on southward to parts unknown.
He's running ahead of me down the platform when All I call up my "See Somethning, Say Something" app and call the non-911 T police number.
I tell them I'm not sure if they want to transfer me but I'm with a kid who just lost his cat.
Dispatcher asks me to describe the cat.
I call the kid over, put on the speaker phone and it turns into a full description of the subject:
Yes, Orange tabby, white stripes, approximately 6 inches high wearing a white cone on its head. Long tail. Blue carrier.
Answers to Mouseripper.
He gives his contact info and about 30 seconds later gets a call back that the fleeing feline was safe and sound at South Station.
I almost went with him to get a pic of the reunion but he was pretty stressed out. Had to go face the girlfriend as well and explain losing the cat.
- Downtown 
- The T