What do you want anyone to say here? Ok, everyone who has ever made a bad shot on an animal stand up and apologize to David.80+ deer and not one gut shot is an amazing feat. I hope it continues forever for you.

For everyone who does screw up and gut shoot one, yes they tend to head for water thanks to an unquenchable thirst that develops. Read your war history. It happens to humans too. http://www.civilwarhome.com/Kirkland.htm
EDIT: BTW, that was just the first link that came up, it isn't the greatest version of that story, but it gets the point across.