I suppose that depends whether one is driven to be productive at 'work', or productive ex-work. If I've achieved my work goals for a day / other accounting per

I suppose that depends whether one is driven to be productive at 'work', or productive ex-work. If I've achieved my work goals for a day / other accounting period, there is no further reward for me pushing-on to achieve more. I'd rather use that remaining energy for my own personal goals. So I don't see it as a trap, quite the opposite; use that positive mood to go and fix the leaky faucet, or whatever.