Anticipator

I don't mean a person who looks forward to a coming event with pleasure.  I mean a person who starts running before the signal, a person who arrives early, a person who comes to the church and sits in a pew the day before the wedding.  That's me.  It can be a handicap to be that way.  Sure, once in a while, it is admirable and helpful.  But the practice of active earliness can definitely be a pain.  Not only that, it can lead to too many periods of waiting for ten minutes to elapse, for the show to begin, for the surprise to arrive.