Rope

Don’t know why it put that sign, I put a face palm emoji

Omigosh, you're right. I didn't even notice that and I've read this about three times.
I've always wondered why they showed his neck in the last panel and I've looked at it a few times like 'what?''. But I never noticed the rope until now. I'ts barely noticeable though.

I just noticed °□°

EXACTLY!!!! But I noticed it really fast and started freaking out to the point where I started talking to myself

OMG, how could I not have noticed this before, it's so obvious :D