I think Harley struggled quite a bit before losing consciousness and most likely pushed his coat and glasses out of the chimney during his struggle to free himself. Someone else also mentioned that he may have rolled his glasses into his jacket before throwing it down to see if it landed before descending. This seems plausible to me after reviewing the news reports and links about his death.I think he shoved the coat in first, with glasses possibly inside the pocket. Then I think he probably pushed it out the opening with his feet.