It has always surprised me how little attention philosophers have paid to humor since it is a more significant process of mind than reason. Reason can only sort out perceptions but the humor process is involved in changing them.
If you don't like the President it costs you 90 bucks to fly to Washington to picket. If you don't like the Governor it costs you 60 bucks to fly to Albany to picket. If you don't like me 90 cents.