The sling serves two roles. 

First, it prevents my arm from moving while it heals.

Second, it reminds me of the cruelty of man.

That night was a blur, but I clearly remember the pain from the blows that kept coming and coming.

I will never forget the laughter that surrounded me as I curled in a ball on the ground.

I may not know who attacked me, but once I find out, they will be reminded of all the pain they brought upon me.