Literature
Soundwave's vacation
Autobots would hardly believe it and call it decepticon propaganda, but all decepticons were entitled to vacation. It was one of the rules Megatron made in the very beginning of building his army, and it did marvels on recruits. The tyranny seemed so much more appealing when you knew there would be fair rations, work and vacation for everyone.
And war or no war, those three were provided. It may have started out as a political statement, but Megatron discovered that more personal time on top of needed refill-and-recharge off shifts made his mechs invest more in their respective lines of work.
The vehicons were on a constant roster rotation,