Mine holds on pretty tight when he's around my wrist or neck. That's how they hold on! They are known for being pretty clumsy, so (I think) when they are tight around you it's just them holding on so they don't slip off. If he ever gets too tight it's easier to unwrap by the tail, not the head or neck. I've had to unwrap him from my neck a few times because he likes to get tangled up in my necklace, and he squeezes to hold on lol. I don't think they are trying to hurt or constrict you.