I used to use the hangers you get at dicks. Climbed up in the stand in the dark,no light, hung up the bow and pack. Sat down ,reached back to get the bow to take off the quiver and nock a bolt and the bow rolled off the hook. Landed 15 feet down on the rocks. It stayed cocked, no bolt in it but cracked a limb. End of that hunt for the weekend.
The hanger had a very short vertical bend at the tip and with the quiver on the bow it did not lay flat aginst the tree . Since it was dark its also possible the foot stirrup was sitting on the tip of the hook not in the flat spot. I have since bought hooks with a very deep V bend in them not the shallow bend.