NEVER! And, they can't grab the mic because it's a headset mic. When the ask to sing, which is rare, I tell them that I don't have an extra mic, and no one but me uses MY mic.

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)