Talking about hair implements, my wife kept her long toothed/tongued afro comb (four 50mm x 1.5mm dia spikes) in her handbag.
Whilst she was looking for her fag lighter, she actually speared through the second finger of her right hand, unfortunately I didn't take a picture.
It was very unsettling, more for me than her, once she'd lit up her fag that is, strange thing though it didn't bleed.
When we were next shopping in Morrisons, I brought it up with the manager, whom removed them from the shelf pending a safety review, I'd suggested a protective sheath whilst not in use, but never saw it implemented, a couple of weeks later they were on sale again.
If it had happened to me I'd be off work three weeks with a broken flask.....