The following are unexpected results when looking at a fence and right clicking while standing up. When holding crouch the issues go away.
1) If you are looking at a fence while drawing a bow back the player will swing his/her arm instead of pulling back the bow. Player expects to pull back the bow, this doesn't happen with other blocks. The same goes for all right clicking functions except for leads. The items that are affected are as follows: the fishing rod, water bucket, lava bucket, eating food, drinking / throwing potion, throwing enderpearl, etc.
2) Placing blocks on fence hitbox yields no block placing sounds.