On tv this morning the following was quoted by a certain politician who may or may not have learned a lesson recently (but that's not the point of this post!). The full poem is a couple of verses longer than this but these are the veses I have long had imprinted on my brain - just in case!! ::) ;) :D
Indispensable Man
Sometime when you're feeling important,
Sometime when your ego's in bloom,
Sometime when you take it for granted,
You're the best qualified in the room.
Sometime when you feel that your going,
Would leave an unfillable hole,
Just follow this simple instruction,
And see how it humbles your soul.
Take a bucket and fill it with water;
Put your hand in it up to the wrist;
Pull it out and the hole that's remaining,
Is a measure of how you'll be missed.