        A little experimentation revealed that the hair was, somehow, messing up the radio signals.  When it was within a few feet of the radio, the signal was inexplicably lost.  The only reason he could come up with was that the hair gave off some sort of electromagnetic interference, although how it could do that was beyond him.  Still, it seemed to shift his thoughts from the losing-his-mind category into the maybe-this-is-real area, as it was an awfully specific detail for a hallucination.