From your previous threads, your kitten was recently spayed. I don't think many people even bother with the cone with a cat post-spay. Is it the plastic lamp shade one? Those are particularly annoying to cats. You can try a soft cone or donut cone instead or just don't bother with one and just discourage your cat from licking at her stitches. A baby t shirt may keep the cat from licking at the stitches until the surgical site heals.
Plastic e collar. I trimmed it for her, she was endangering herself running into things and getting stuck under the bed and lounge.
Last night during the night and slipped out so I havent bothered putting it back on.