I have an artifact that says "It boots your enemies away from you." It also happens to send everything lying on the floor flying away from me if there's an enemy standing on items. Don't know if that is intended
I noticed that kickback attacks, like the one that comes early within the Unarmed skill, can knockback virtually any object on the ground when used. This also includes pick-up items and impassable decorations. I became clever once and used the knockback to create a funnel point quickly after discovering a monster hoard room, then I lured the groups through it and took them out "300 style." However, when fighting monsters on top of these kinds of items, it seems random what actually gets the knockback. I don't know if this is a bug, or if the prioritization needs a tweaking. It would be nice if the knockback would prioritize monsters before items.
I noticed the knockback can also hit monsters/items/traps/decorations through walls. It's quite a handshake!