@ Xray
Thanks dude. My girlfriend works in a school so she called the school nurse over (who is a friend of hers). She examined my finger, checked its movement. It was a clean wound - no glass left in it (she was able to put the glass back together). She dissinfected and stiched it up for me, and told me to get a tetanus injection (she said it wasnt essential but as Ive not had one since I was 5, its best to lean on the side of caution).
It was better than sitting in a Casualty department for several hours. The weekend those places are full due to drunks, and people fighting.