The ages of man

From 20 to 30 if a man lives right
It’s once in the morning
and twice in the night
From 30 to 40
If he’s still lives right
He misses the morning
and sometimes the night
From 40 to 50
It’s just now and then
From 50 to 60
its’s Gods know when
from 60 to 70
if he’s still inclined
It begins to get erratic
but it’s still in his mind
His sporting days are over
His light is nearly out
What used to be his sex appeal
Is now his water spout
It used to be embarrassing
To make the thing behave
For nearly every morning
It stood and watched him shave
But now that it’s getting older
It sure gives him the blues
To have it dangling down his leg
And watch him clean his shoes.