Seen It All on Subway? Look Under This Seat
It was a few minutes before 4:30 a.m. when the call came in: a suspicious passenger was aboard a Manhattan-bound subway train. Other riders were alarmed. The suspect was said to be making furtive movements.
And there was something else: this suspect had a tail.
Last Friday — yes, it happened to be the 13th — the straphangers on a late-night D train were startled to discover that a nonhuman creature was in their midst. An opossum, to be precise.
The intrepid marsupial, which had apparently boarded after the train departed from its Coney Island terminus, had curled up beneath a seat, comfortably close to a radiator, as the train rattled through the wilds of Brooklyn.
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http://www.nytimes.com/2012/01/18/nyregion/in-brooklyn-suspicious-passenger-with-a-tail.html
I put up with the rats under protest. I'm not messing with these suckers.
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I think he's adorable, but then I also had a pet rat. 
and this opossum isn't exactly the opposite of cute-
It was just minding its own business in a tree in our back yard. My son went out with a flashlight to get our dog because she had stayed out for a long time. He found her staring (in the dark) at a branch about 5 1/2 ' from the ground, and discovered that the branch was occupied. 
The possum's ears looked like they were made of wax.
He looks like a baby... And that isn't my rat, but he looked just like that. I was a psych major in college and I brought my lab rat home. The only issues he had were that he was kind of nervous. He eventually did calm down, but he stll preferred being in his cage. When I cleaned it, I'd leave a big paper bag open on the floor in case he felt like hiding. These are hooded rats, white underneath with a black (or brown) head and back. He liked to be scratched between his ears... 
I save a copy every time I see it, just to make sure I always have a copy around.
