Yeah, or maybe where we're sent to steal back treasure from a dragon, without killing him (for fear of awakening some dragon-revering tribe, or something), OR without waking him.
Or get two warring tribes to come to a peace agreement.
Or help one side win against another.
Or assassinate somebody.
Or prevent an assassination.
Or guard (fill in stereotypical helpless damsel in distress) from (fill in stereotypical naughty knave).
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)