Postal worker is a popular parking place for leftist activists between protests.
Before I get flamed, I'm not saying all postal workers are leftists, just that I know it's a popular gig with the long haired maggot infested hippie types, or at least it was when my sister was married to one.
Re your postal workers:
I was thinking of govt workers in general, who can usually find a reason to attend a protest. I lived in Vancouver for years and saw "solidarity" in action so many times.
Do you remember the WTO meeting protests in Seattle in 1999 that turned into riots? The Ruckus Society actually held training session at the University of British Columbia in prep for the "non-violent" protests. Thousands of BC union workers went down to Seattle for the "March"
It was an amazing live demonstration of communist principles in action.