He tried to glance down at the knife, quietly taking in what the other told him. As a last resort, grabbing even for the blade would be a good option. He would be injured, but hopefully still alive in the end. True enough, as he saw for himself, grabbing for the arm didn't do anything. Either it wasn't something that would work, or he was simply weaker. "Hand or wrist," he repeated with a nod, stilling at the blade turned. He let out a shuddering breath. It was the back, dull and unable to really hurt him, but still rather threatening. "What if... I used my body~?" Of course, he had to joke around. Something in him just couldn't be serious, or at least had to mess around at the wrong time.
He needed to defend his home from the intruder. If he couldn't fight, he had to stop him somehow. Naturally, one would try to call the police. He would use his phone, but it was on the floor in Ishida's bathroom with his discarded clothes. If he knew where the landline was, he would run for that. He doubted the intruder would let him out of his sight, the man would try to stop him from saving himself and his things. Well, he could try for the wrist, Lee actually going for it and grabbing it to move his hand.