I often experience the following: While being in a looting area with spawning zombies the server randomly restarts (maybe by admin don't know). If I re-enter the server I have a black screen which says "please wait...". Obvious my character is already placed into the map and is getting attacked by fresh spawned zombies. I only can hear the sound of getting hit by zombies and I am not able to do anything. This is pretty annoying if you have no force to prevent the zombie attack and get unconscious after respawning or at least have several bones brocken and ruined gear.
In my opinion that issue should be an item on your agenda for one of the next Day Z alpha branches.