Yep, MG, that's right, thank God.

I saw last week on a show (can't remember which) that a woman had that happen to her when she was getting breast implants. They left the sponge in there for years and when she was opened up again to try and fix the botched boob job, they found it.

Suppose it could happen with any op. I've got to get opened up soon, freaks you out about something like this happening!