Lot's of good ones.A couple for me would be thetangled bow rope on limbs beneath me that require me to go untangle it.The limb that I wish I would have cut back but didn't and now I am convinced that it will cost me a shot.The deer you can hear but can't see.The doe that you didn't see that blows at you while you are drawing on a great buck and he comes unglued.The coyote that disrupts the buck that is working his way toward you.The weekenders who decide it is a great idea to take their dog for a walk on the mountain during bow season and then get upset with you when you scare the crap out of them.My all time favorite,a couple is working their way toward me with their black lab already having come through,me wondering if I should whistle or say any thing,not wanting to startle them,not wanting really to have a conversation with them,finally upon me gently saying hello and startling them,they ask me is it hunting season? No I always dress in full camoflage and climb a tree with a bow just because!
There are many others I am sure!