One season of chasing mule deer with a recurve, so take this with a grain of salt. I'm 0-6 I think, with two blown shot opportunities. One shot was longer than it looked, and the buck jumped the string. That should have been a dead deer, and I do own a rangefinder now, so I won't call that a failure per say.
Failures: one rock kicked loose, a thunderstorm switched thermals at 40 yards, swirling winds on a hot day, bino harness caught a twig at 35 yards, wind switched at 45 yards, and the worst of them all, I picked the wrong high point to get to in a willow patch on a 180"+ buck. It's an awful thing to see nothing but antler tips at 20 yards, and then have said buck decide to run right as his chest clears the brush. The arrow went where I wanted it, but he was already gone. The other spot, 15 yards to my right had a clear view to where that buck originally stood up (and he even looked away from me initially).