You're right! Why should you leave the sea so early, when it is so beautiful here, the sea, the evening sun fills everything in shades of orange and pale blue, you have good friends around you and this view .. wonderful :B. The least you can do is ..to keep enjoying :). Athens is really incredible and you can say that a million times and then it is not a repetition, every picture is so beautiful and just great.
I do not believe on Friday the 13th. It is not an unlucky day for me.
But it is not easier in life, because every second of life can something happen, a look too little while driving, you forget to turn off the stove, you fall down the stairs and ... and it could be like Friday the 13th.
But do not think about it, be aware and enjoy life.