I wish I knew a way to get rid of the annoying subway preachers. The ones who ambush you in nearly empty subway stations and just won't let go until you can run in a passing subway wagon away from them.
I don't meet them often (once or twice a year) but are they annoying. Nothing you can say seems to make them let you be because they have a mission to save you.
I'm thinking about trying to concert the next one to Satanism to see if makes her run.