You'll also get an alert if one of your dwarves transforms into a were. I think it pauses and re-centers on the dwarf, too. But I'm not 100% sure of the pause and center.
Well, my bouncing militia captain eventually got hit in the arm by a goblin spearman, fracturing the bone, and causing him to give in to pain. This, after 6 pages of him slamming into an obstacle and various goblins and beak dogs missing him. Then another 12 pages of various beak dogs and goblins hitting/biting him in the head but being deflected by his *steel helm*. But eventually a goblin with a copper hammer managed to crush his skull, killing him. He continues to generate "slams into an obstacle!" reports, even after being killed. I suspect he will continue doing so until the siege is over and I send someone out to deconstruct the archery target.
In the mean time, the battle rages onward. The crowd of troll was coming in through a 1 tile wide tunnel into a larger room, where my military was waiting for them. The battle has been entirely one-sided thus far, with the dwarves acting like a wood-chipper, and the trolls playing the part of the wood. Few have lasted more than 30 or so ticks, most receiving multiple injuries at first contact, giving in to pain, and quickly getting decapitated or skull-crushed. The dwarves have advanced through the tunnel, painting the walls cyan with troll blood as they went. The tunnel is partially through sand, and I pity the poor dwarf that gets the job of cleaning all that blood out of a sand wall.
the dwarves have just reached the outer end of the tunnel, only 9 trolls remain alive, out of 3 dozen or so that started, and those that survive are pretty much all overcome by terror and fleeing for their lives. A few goblins on beak dogs have also started to show up, but most of the beak dogs are also flashing the blue ! of terror and are heading away from the fray. And well they should, for things are about to get far worse, because this just showed up in the combat log:
Fikod Nishkalan, Swordsdwarf: Death... I am not upset by this.
Fikod Nishkalan, Swordsdwarf: It was raining on me. It makes me very grouchy.
Now the goblins are facing a grouchy wood-chipper.