Parkour expert/doc

• This trait also makes you four times less likely to cut yourself when climbing through "sharp" terrain, and allows you to climb chain-link fences without any chance of failure and at your normal movement speed.
• This trait makes the character half as likely to slip and fall when climbing down walls.
• This trait causes the character to take only two-thirds damage when he does fall.
• This is functionally the opposite of Bad Knees, other than that Bad Knees does not increase falling damage.