Ian did, hitting out at the next nearest leg. He didn't hit it hard enough to break anything, but it was hard enough to hurt the spider and it lifted the leg, away from the thing that was hurting it.

Which then made it unbalanced and it started toppling over. The leg had hit flailed about, trying to find the ground again. Ian dodged it, to hit it again, although he managed to hit him in the legs and he fell backwards.