How about rural service - take a dozen out in one bus, over the course of the day you'll talk to three people. Everybody did twelve hours getting out there and back.
When I started getting very cynical about it I counted penalty rates - saturday witnessing? That's time and a half. Sundays - double time. Public holidays - the double time and a half nirvana.
This is the eath-shaking preaching work that's happening all over the world people; yes, the whole world knows that the good news of the kingdom is having it's time card punched.