As a medic, in my job I've got to be nice to people I'd shoot without a second's thought - the rude, violent, frequent attenders.

Here I can be me, or at least a super condensed version of me with all the stops out, no holds barred.

In a way things are more intense here as one's age, background etc etc are stripped away and there is nothing but our ideas: it's not the way we look, our accent etc etc that we can say was the reason for the problem, it was purely the argument that we advocated.

And here given the audience we generally do feel a greater impetus to get "learned" people to agree with us, as opposed to the cattle god in his Divine wisdom has populated our more immediate surroundings.