The Metropolitan Witnessing arrangement, which is basically the same cart work as everyone else but with a fancy badge so only the select few can take part is slightly different in that this work takes place for far longer, all day into the evening typically, but because it's essentially limited to pioneers then it's OK to conflict with congregation FS events.
I don't think the old pioneers I knew as a youngster would have tolerated this cart work - standing around for hours on end with nery a soul to talk to - I like to think they were committed, true believing preachers of the good news.
I get a doorknock about once a year or two.....hubby answers the door and hustles them away before there's a scene LoL!!