"W-what...what if y-you get hurt...?"
He is legit not concerned for his own safety right now-he's just thinking about the safety of others.
"B-but I do! I-I'm really n-not worth the trouble...I-I don't-i-it doesn't really matter w-what happens t-to me..."
"..."
"I...I don't understand."
"N-no...Katsuki...i-if you're so deadset on helping me t-then I'd a-at least like to know why..."
