I'll tell you one that happened about an hour ago:
I made a survey were I just have I run around crazily, mine and do nothing else on hard- core. First part: I'm mining, and a spider spawns Infront of me. It took me a while to kill with bear hands. Next, I hear a hiss sound. I turn around and nothing's there. I turn back to were I was facing and a creeper is right infront of me. I run in the oposite direction of the creeper and another creeper is waiting there. I sigh as both creeper come at me and explode me. I have to let them kill me because one of the rules is that I can't place blocks.
Attempt 2:
I run around to see if I can see the sun through fog. I hear a 'bang' out of my window in my house and have a look out my window, leaving te computer on my bed. The next thing I know Is that when I go back on my computer it's night time. I have a look round to see if there is any trouble and there is. A gang of creepers, spiders, an skeletons are only a few blocks away. I try to run but the skeletons shoot at me and kill me.
Attempt 3:
I think to myself, 'If I don't make it this time I'll delete the server.' So when I respawn I spawn in the middle of the sea somehow. I see an Island in the distance so swim up to it, an get onto the island. I see something green in the distance so go and check it out, but it's only sugar-cane. I turn around and a creeper is heading for me. I then run back in the direction of the sugar-cane, ending out swimming in the sea. I swim for a few minutes, not knowing were I am in te middle of the sea the creeper still chacing me. I swim under the water as the creeper swims over the top of me, and I swim in a direction. Not knowing we're the creeper is I swim up for a breath an to see we're to creeper is. I hear a hiss sound and the next thing I know is that ive been blown up. I get frustrated and delete the server.