Think about the game you have put the most time into.How much of that time did you spend not doing anything?
I'm not talking about idling on purpose either for some sort of achievement, new hat, or whatever. Nor am I talking about times where a game has you stay still in order for something to unlock (like the 3-minute waterfall).
I'm talking about the times where, let's say, maybe you had to use the can, you got hungry and had to whip up something, there was an emergency, or some other event where you dropped what you were doing without reaching a stopping point and the timer kept ticking.