Mob AI with Partial Blocks

Mobs pathfinding tells them that partial blocks are safe, when in fact they fall through them. It allows for easy ways to trick mobs into falling off edges or into pits. Glitches a handful of non-normal sized Blocks:

Slabs
Beds
Trapdoors
and Others

This can also lead to other odd bugs, as Zombies can't jump onto trapdoors that are on the bottom of the block one above them, even though they player can. They just treat it as if it were an open block, and stand with their hands raised. (see picture)