What degree of healing? Stopped bleeding? Stopped hurting? Nothing but a vague scar and a memory?
I had a nail through the foot when I was a brat; I stood on a piece of wood with a nail in it on a council tip whilst playing with my good friend Neil. I hardly felt it go in, just a strange sensation, but when I picked my foot up it had a piece of wood nailed to it and the nail was pushing the skin on the top although it didn't quite break it. I put my foot down and the angle of the wood pulled it out - which also felt quite smooth - and then there was blood. I limped to my friend's house where his mum helped wash the foot, my mum came to pick me up in her car (dead posh, we were), and took me to the Doc for a tetanus. I was allowed to keep my foot elevated on the sofa that evening but it was school the next day! I was "off games" for a week or so but only as a precaution, I could walk normally after a day or two, although, that said I could feel the injury for months or even years after when I poked the sole of my foot with a finger.