Force

#force is the extended command to unlock a container or a door with a weapon, either by prying or by smashing the lock.

Prying with an edged weapon (such as a dagger) is a better method, as it will do no harm to the container and its contents. However, it may break your weapon, so do not pry with your only (or best) weapon! Smashing the box with a blunt weapon (such as a mace) may destroy the whole container including its contents. Smashing the container therefore should generally be used as a last resort.