I'm with wierd on the medium requirement; that is be wholly inappropriate and unnecessary, and I'm sure many of us would be unhappy if the chosen medium was not one in which we were proficient or with which we enjoyed working. Demanding a story also seems like a bit of quibbling.
Although, if a story is manditory, I do have one regarding that hairy therapod; I had a pair of dwarves washed down the drain of my dining room waterfalls, and into the lake. Both of them survived the fall and escaped the lake without drowning, which is miraculous in it's own right. However, once down there the beast made a beeline for them, through the cave connecting that cavern to the one far above. I told the stranded dwarves to fight for their lives, and prepped my militia and miners to breach the cavern and rescue them (which in hindsight resulted in far more deaths than it prevented when the next beastie blundered in through that passage)
The two dwarves duked it out bare-fisted with the beast, whilst trapped in a little alcove. One of them was immediately dragged down and munched on by the beast, but his comrade started beating on it ineffectually and actually managed to lure it away, which resulted in his death. The beast went back to torturing the now-unconscious dwarf in the corner, and moments later the cavern was breached by the miner sent down and the militia poured in and engaged the beast. They turned it into a paste, I suppose, and saved the remaining dwarf's life at the cost of some injury and casualty to the militiadwarves. I think the casualty was only a recruit, though. My Head Woodsdwarf, of the seven originally embarking, was credited with the kill after the beast bled to death. Later, the stranded dwarf recovered from his wounds, other than the motor nerve damage to one of his hands, and scarring on his other hand and buttocks... Note to self: don't tell horrible monsters to kiss your ass; they might try to remove it.