Good Samaritan

Another name for someone who selflessly helps others.
This term originates from the parable told by Jesus in the Bible about a Samaritan (a man from a country called Samaria) who helps out a Jewish man who is ambushed by theives and left to die. This was all the more selfless of an act considering that the Jewish and Samaritan people in those times usually did not associate with each other. This story was told in response to a question concerning the scriptural mandate to "love thy neighbor as thyself". According to the story, a man asked "Who is my neighbor?" and the moral of the parable is that everyone is really your neighbor (meaning you should help anyone you see in need).
Today a Good Samaritan is usually someone who goes out on a limb to help others, even if they are complete strangers.

When you sweetly offer someone help changing a flat tire but when their back is turned, you hit them over the head with a shovel.

to use a numb hand to shelving a pill. such that it feels like a stranger is doing you that favour.

Whilst novices might sit on ones hand for a prolonged period, experienced operators would opt for a tourniquet.

Often practiced by lone homosexual men. The said homosexual goes to a popular gay hunting ground i.e. public toilets, gay bushes or the forest, he then waits till there is a group of gays who are yet to pull but need to empty their full sacks ! He then lays on the floor in just his pants, the group approach and collectively wank all over him until he's covered in gentleman's relish !

Kenneth Ely, the most selfless papa dog out there