Hmm...my post doesn't seem to have been posted. If this is a repeat, please ignore. Okay...this is from my rules lawyer, so you may not agree.
I'd like to grapple him with my opportunity. That would give him a attack of opportunity. BUT, that would mean on my turn, he wouldn't have an attack of opportunity any more. (Do you agree? If not, I may change my tactics.)
At the same time I would be saying, "Please stand down. I do not want to hurt you."