I have on many occasions using mulligans...made a putt on the second attempt after using the exact same break and speed hitting the ding each time.
That should make us who are insane feel better. ;-)
Seriously though, that part of the game is what I enjoy. I know this isn't real golf, but it is "my real golf" during the long winter months.
If each shot had the exact same result every time, it wouldn't take long for anyone to master it. Which would get boring quick.