I think it's way worth it. In a situation like that, you just gotta suck it up and do it. The discomfort is temporary and none of those people will remember you tomorrow. And the radio thing.. I've listened to people get interviewed, they usually ask really easy questions with short answers so awkward idiots like us won't have to think too much, LOL.
PS he could have had an iPhone, you can tweet from those too.
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"You gotta keep making decisions, even if they're wrong decisions, you know. If you don't make decisions, you're stuffed."
- Joe Simpson