Would this be an unethical use of chat? Is it legal to do this?

[Unoriginalname]

I've thought about trying this sometime when I get AA fairly early in a tournament: Pushing it and then quickly saying something like this in chat:
"OMG WTF happened, I clicked the fold button!!!"

Would this move be considered uncool or unethical? Would you say there's nothing wrong with doing this and it's your own fault if you're dumb enough to fall for it? I wonder if it would even work.