NASCAR on Fox analyst Darrell Waltrip made his first trip into The Freak Nation Sunday night and he made it worthwhile for all concerned. One of the all-time NASCAR driving stars talks about today's drivers, especially Daytona 500 winner Trevor Bayne. He also talked about the awkward moments in the television booth that aren't always obvious to those of us watching on the couch. Here's some background on what's happening, things you don't see or hear, during a NASCAR race. Listen…