Okay, so maybe Desmond is a little scared. Is that really such a bad thing, though? If he wasn't scared, he could do something reckless and get himself killed. He'd say this is a healthy amount of anxiety to have.

You, on the other hand, completely disagree, and keep egging him on, trying to get him to do the jump.

"No!" he says, lightly nudging you away from him. "I am not jumping from this high up. I don't care if it's a 'leap of faith' or if Altaïr and Ezio and Connor were able to survive it. Besides, I'm pretty sure none of them ever jumped off a literal skyscraper," Desmond continues, crossing his arms.

He looks down for a moment then immediately looks back at you. "That is not happening. At least, not unless you go first, and somehow manage to survive it."