Have you ever gone up to a high place and thought "This could all be over, easily"?

I lived in emergency accommodation right next to a bridge over a motorway when I was 19... I spent 3 weeks there before I had to come back "home" - because I was afraid of what I was going to do.

The only thing that really stopped me was the fact that I was cold to the bone after 12 hours of roaming the streets in Winter... I couldn't be bothered to take a few extra steps to retrace my steps in the event that I got cold feet (pun intended) and changed my mind.