This unique, possibly life-saving device comes with a vicious breed of dog known as a "mini-pit" which is light-weight but long on mean (just look at the damn thing!). Carrier and mini-pit do not exceed a combined weight of 5 pounds, perfect for carrying on bus, light-rail, or other modes of transport likely to be rife with ner-do-wells.
When they see the "Port-a-Pit", they will keep on walkin' to the next victim!
Carrier doubles as life preserver. Dog available in any color you want, as long as it's black.
LEARNEDFOOT PROVIDES FULL DISCLOSURE: The most vicious thing that I ever witnessed the display-model "mini pit" do is poop on my lawn.