Damek thought very suddenly about the only time he had ever been on a boat (Olo's fault of course) and felt queasy. Without admitting his own fear of boats and the water underneath them, he replied promptly with: "Mountains. Less vulnerable in general, we have avenues of escape should they be needed, and it seems our fighters are better suited to the positioning available on land vs. sea." Through all of this, Damek kept his face stoic, revealing none of his personal emotions.
Damek looked displeased that Olo accepted this quest. However, he walked up after and said, "I Damek hearby swear that my intent here is solely as a guard for hire, that I mean no harm, mental, physical or spiritual to anyone here nor will I allow any such harm to befall them if it is within my power to prevent it. Nor will I substitute my own judgment for what constitutes harm in place of yours. I am a tactician."
Damek ignored the commotions around him, watching and waiting to see what Olo would decide. He almost hopped that the man would reject Olo's oath because then they would just be able to leave. Without dealing with such trivial matters.