When will you know it's time to hang up your whistle?

[mick]

As you get older, different parts of your body may probably give you a tip off... a knee, a shoulder, and ankle, a tendon, eyes.... Stuff doesn't feel right or heal right anymore.

You may lose your "cutting-edge" philosophy and keep using the previous year's mechanics and uniform.

Maybe your shoes are not polished as well, or you don't get to the games as early as you previously did.

Your partners may start getting under your skin and your tolerance levels for fans, coaches and player may fall.

Perhaps, when you blow a call, you blow it off, instead of beating yourself up for a week.

I think the hints will be subtle and personal.

mick