You can hurt him
You can maim him
You can steal his lollipops
You can kill him
You can force push/pull/throw/choke/whatever him
You can even force mind control him (but that requires significant effort and friends mind you, he's not a total ditz)
Any thread, any time. However write it well or I will not accept it. Don't just Deus ex Machina my character at the beginning, or at a random moment. Give him a chance, and make it interesting. Otherwise, he's a ragdoll for yours and my enjoyment.

(This is a published blog so people can just link to it via my signature)