Wow, where to begin.
My first bow hunt ever I was probably 14 and had a cheap metal prong arrow rest and an aluminum arrow. A small 6 pt came in and I drew to take a shot and the arrow fell of the rest. Well he trotted a few steps forward right behind a tree facing away from me, parallel to the tree. He then proceeded to stick his head out around the tree and look while I'm at full draw and only giving me a look at his face. He then walked straight away slowly behind the tree the whole time. I was pretty bummed.
I've also shot at a doe last season where I didn't get my bottom cam over the rail on my climber stand and clanged against it as I shot. Shot went way high.