Attacking with a boomerang in melee should use the club skill rather than the boomerang skill.

When you are prompted for a direction to throw a boomerang, you can enter into some view-only mode which will show you the boomerang’s path in a given direction, before committing to throw it in any specific direction.

Enchanted boomerangs can continue flying after hitting a monster, with an enchantment/7 chance. (Add 2 to the effective enchantment if the boomerang is blessed; subtract 2 for each successive monster it hits.) If the boomerang is cursed, enchantment doesn’t matter - it will always fall on the first hit.

The reason behind this is twofold: because it makes boomerangs a more attractive weapon, and for the slapstick comedy value.

Enchanted boomerangs (or magic boomerangs, if implemented) can gather items from the floor and return them to you.

An artifact boomerang which is a guaranteed first sacrifice gift for Archeologists.