Communication and unwanted chatter is always an issue, it really takes discipline in the heat of the moment to think "Ok, Who am I? Where am I? What do I need?"and articulate that "clearly." We had another mayday several years ago and the IC froze, it never registered to him what was REALLY going on. Like most we train on this a lot, good radios with an emergency trigger that goes straight to our dispatch center ID's the radio and locks onto that channel. Hope I never have to use it.