Tried to return to earth in disguise

He returned to Earth dressed in a modern suit with short hair and proper shoes. The weather was simply horrific, so he rushed in to a local tavern to escape the unholy blizzard. He was so amazed at the sights and sounds that he witnessed within the modern tavern that he absentmindedly left the door wide open while he looked around. The cold air and wind rushed in through the open tavern door and after about 20 seconds, the short tempered barman shouted out "Jesus Christ, were you born in a barn or something ?" to which he replied "Yes, yes, you know I was, but how the f**k did you know who I was in the first place ?"