I chose a public park because I wanted my body to be easily discovered by law enforcement (I sent an email), and the only fixture I could hang from my apartment was the door. I was uncomfortable with doing that, and the more I thought of it, I did not want those who knew me to discover me.
My problem is I stupidly did it at 6:30 am and did not account for the height of the branches. The ones that looked appealing were too tall for me to reach. I drove to a gabezo when a car pulled up. Of course, this tree was reachable, but just barely. The ligature was too loosely tied to the branch. Nothing broke, but my ligature loosened until I dropped to the ground and there was not enough pressure on my neck for the noose to constrict my airways. As I had already told the police where I was, I scrammed out of there and went to er to check for damage in case they were on there way. The psych ward sucked. But it's the risk you take.
I still will choose hanging if I decide to ctb (I'm trying for recovery currently) and a forest or park will be my location. I will certainly make sure to go around 2-4 am and test the heights of the branches as that was my error.