T pet parade: Pooping parrot plasters passenger

Hard on the heels of last night's parrot report from the Red Line comes Libberding's report from around noon today:

was red line @ mgh. Older gentleman with a cart had a parrot. It climbed up to his shoulder and pooped on him.

Margaret introduces us to the concept of service parrots and wonders if the guy is a regular at one MIT library who has one - although she adds his parrot is better behaved than the Red Line bird - and potty trained.

Ed. question: What's next on the Red Line? A pot-bellied pig?