The idea for this came from KiaraLaufeyson.
Dear Thor,
I'm afraid I have a problem. These restraints you put on me - the muzzle and handcuffs - are making me sick. My throat is aching and I have no way of coughing to get rid of the unwelcome feeling, so, if you would be kind enough to remove my restraints, I would be grateful. The only way to get rid of my sickness is to let me live unchained. I promise I won't try anything, I won't even kill anyone. Maybe, just for you, I'll go back down to Midgard and visit the Avengers to... bond with them. I would never dream of hurting them in any way. [Here, scratched out, the words "I don't dream of hurting them, I will hurt them" can be found]
So, in conclusion, let me go.
Loki.
P.S. Of course I'm telling the truth. [Slight signs of spit where Loki coughed can be seen here on the letter] Why would I lie? It's not like I'm the god of trickery and mischief or anything... oh, wait...
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