When I'm walking down the street on my own, I go through in my head how I would k/o someone using the person and situation give to me, sometimes let out an evil smile, hope people haven't noticed it.
The other day some scag head standing next to a pay phone said "couldn't spare me 10p change could you mate to make a call", first though was 'yeah a call mate' obviously I said the same thing I say to all people asking for change "why bother with the hassle, here have some drugs" at least that's one of the many options I thought of as I replayed the scene in my head as I walked home, when in actual fact I went for the cliched "nah mate, got no change".