There's worrying about germs and then theres literally having your mouth on an object that thousands of other dudes have had theirs on (phrasing?).

I've never used a shipset in any A/C I've flown because it's disgusting. It's one thing to have to grab levers, control wheels/push buttons, but having a mic up to you lips that other guys just coughed,sneezed or did whatever on is beyond gross.