Here's KP on the matter. He has a way of leaving things unvarnished:
'The hardest part [of not being captain] I found was fielding, where I go out and I stand in the field and I'm not telling anyone where to go and I'm not having to think. I'm just standing there going [exhales] 'Pheeew... When's lunch?' Or counting down the overs, '10 overs to tea... One over to tea... End of play... Right, what restaurant am I going to tonight?' That's the kind of stuff I think about now, which is a huge difference from India, where, honestly, you think your head is going to explode. 'Is the ball spinning or not spinning? Tendulkar is batting like God! Here comes Dhoni!' But now it's, 'Oh, I'll watch Chris Gayle for 10 minutes... That's interesting... What time is lunch?'.'
So, there you have it. What time is lunch? What time is tea? Here lies the truth about fielding if you're not a bowler and you don't hang out at first slip all afternoon. Anyone who's ever played can relate to it. It may not be PC to say it around the coach - in front of that lot, you must affect some kind of demented love for standing at mid-on - but there it is, right from the top.
You've always known it though, haven't you?