You can't try to keep someone against their will, or it's difficult to get them to listen or have the right mentality.
As long as my players show respect - not for me, but for the locker room, their team-mates and the club - I will tear my heart out of my chest and let them play keepy-uppy with it.
At Milan, Kaka used to work even when we had two or three days off. And our fitness coach, Daniele Tognaccini, made him run.
If you don't train in a certain way because you think you won't play, you have to do more in the week to show why you deserve to play.
Being grumpy at not playing is part of the job. If I see someone who is constantly on the bench smiling and laughing, then that's no good either.
As long as my players show respect - not for me, but for the locker room, their team-mates and the club - I will tear my heart out of my chest and let them play keepy-uppy with it.