https://i.imgur.com/M9A2aLZ.jpeg

these shankles are supposed to be lined up in a row moving only up and down but instead periodically clustered in a corner before returning to vertical movement. (there were some spikes offscreen in the next room above, so i suspect they were trying to chase the spikes - despite being far away, shankles being unable to pick up spikes in live anyway, and normal shankles not exhibiting this behavior)