[He glances briefly around to check who else is within earshot, and then lightly touches his side just above his obi.]

I apparently cracked a few ribs, so I'm supposed to be on bedrest. But it was so boring, I had to escape. You won't tell anyone, will you?

[It's not the whole truth, but he can't tell anyone the whole truth. To do so would to admit that he would die within the year, maybe two of he were lucky. He can't do that, especially not to a boy who needs to believe people can stay with him.]