Oh, I have heard stories like that. For instance, when some of the witnesses go on airplane trips they bring along a Watchtower or Awake and leave it in the pocket of the seat. They will then count their trip as field service time.
Of course, there are those pioneers that count their time at District Conventions sitting with the contribution boxes or in the mothers nursing rooms holding the signs to tell everyone to shut up. Funny thing though is that pioneers are the only ones allowed to count their time at those events. They are the only ones that it counts as sacred service.
Loruhamah