Cranky Old Man poem

This is a poem that has been winging it s way around the internet for a while now, my partner introduced me to it and I thought it was beautiful. I thought it had a story to tell, so i made this to help illustrate a dying mans words. It s author seems to be unknown, having been claimed to have come from several different countries. However, the sentiment remains the same regardless of it s origins. I hope you enjoy. :) I have since learnt that this is a poem written by a man from Fort Worth, Texa