Wounded dog

The wounded dog is a mongrel character found in the Commonwealth. The Sole Survivor can heal the dog using a stimpak.

Background
Wounded dog is a random encounter where one can approach a wounded passive female mongrel (Sole Survivor refers to her as "Bitch"). Her right legs are at 0 health when checking V.A.T.S.

Other interactions
One can interact with the mongrel and will be given the dialog prompts to ask if there is anything wrong and then a second prompt to render help will be available. Afterwards the right legs will be at full health in V.A.T.S. and the mongrel will walk normally. The third dialogue prompt has either asking her name or choose between the three names Mutt, Sparky or Buttface. If having to ask her name instead of picking one she will then be labeled "Mutt" afterwards. After the naming dialogue concludes Mutt will simply stay in the area until the encounter/zone resets.

Encounter locations
Encounters confirmed to happen at the courtyard/statue across the street from [ArcJet Systems, under the railroad bridge just south of Starlight Drive In, and in the partially destroyed house just west of Outpost Zimonja. Having canned dog food and/or a dog collar in your inventory has no effect on the encounter. Mutt will follow you around within a relatively large area if you don't walk too far away. The encounter at the Starlight under the Railroad bridge will have Mutt follow as far as the restaurant overhang at Starlight. You cannot assign or interact with Mutt in build mode like you would a purchased junkyard dog. Mutt will not interact with a dog house if placed. Pickpocketing a dog collar into Mutt's inventory won't have any effect.

Appearances
The wounded dog appears only in Fallout 4.