@UF: "Just use PC4 and stealthkick + recall the person. That should mute him. Personally I prefer to use WPE filters to mute people, however it's a bit more complex to use."

I accidentally did this yesterday ;P I stealthkicked Umba (who was host) and then recalled him, this resulted in me not seeing the countdown of our 2vs2, and me stupidly flaming his hosting for giving me chatlag. So there, laugh at me if you want to =(