Taking risks is all about your comfort level in your vaults or wall passes. Many things that I or some others can do would seem risky to you, but may be well within our limits. Depends on what the circumstances are. If your striving to perfect your parkour, risk can be helpful, but only for mental strength. Never do anything for a camera or friends that you wouldent do training by yourself.
Prime example of the bolded text.
I recently went on a trip to New York (by coach bus) with my school music department. While at a rest stop, I did some things, and without knowing it, I did a series of vaults over 2 railings (speed vault first, then kong the second). One of my school's band directors saw me vault it, and he yelled at me. Luckily it was on the way back to Wisconsin from New York, and he told me sternly to not do it because I was going to injure myself badly. Very simple to me, dangerous to another.