I was working on a silk organza wedding dress when I really did it. Darn Elna will sew through anything so the needle was embedded far into the bone. Everyone was asleep, so I had to work the needle out with my other hand and wake my husband up with a needle on one side and a pair of pliers on the other. Soak your finger in warm soapy water twice a day. Works wonders.
I've sewn through a little skin since taking up quilting, but no more bones, thank goodness.