Basically a 3 step process.

1. Toss tent at boss.
2. Let it get bit by a silence, darkness, poison snake.
3. Profit and/or get horribly raped when it fails.

A tent system doesn't really have too much use in the MMO setting given how they'll probably introduce a higher native regen/refresh and 'campsites' just to be generic..err standard, so really a tent would only serve as a means of not going back to the inn, which would actually negate their purpose altogether (in current version at least.)