Micky (Fallout 3)

Micky is a vagrant outside Megaton who repeatedly asks the Player Character for Purified Water. Every donation of water gives good karma and it is repeatable action, thus providing a karma-farming opportunity especially if the player has a home in Megaton and thereby unlimited water. If you murder Micky without believing anybody saw you, the residents of Megaton will still become aggressive, possibly due to Stockholm, although he fails to shoot at you even after Micky's death until you enter Megaton.

Verified: Micky dies within 24hrs game time if you refuse to give him water. This will not incur negative karma or affect town behaviour towards the player. Also he will not die of thirst if you do not engage him in conversation to deny him the water. In short: don't tell him to find his own water unless you wish to cause his death. Micky may rarely be killed in the fights that occur just outside of Megaton but he usually flees inside the town to avoid the conflict. Hostiles will attack whoever engages them first or is closest to their spawn points like a caravan, Deputy Weld, or the player, so most likely Micky could be killed by a stray grenade or missile.

Micky wears a Wasteland Settler Outfit and it is his only possession.

Note
Micky actually has the ability to wear power armour, which is odd considering most, if not all residents in Megaton itself cannot. He'll still flee into town in case of attack, though.

Appearances
Micky appears only in Fallout 3.