I have a heifer that has a rectal prolapse. It's been going in and out for a couple weeks now. So as I was going through town the other day I stopped and asked the vet. He gave me an 'S' shaped needle and some stuff that looks like shoelace..... told me to stick two fingers in and stitch it up. That was it! The neighbor said to take a tube like from the shop vac and stitch around that. Since I don't do needle point or even darn socks can anyone give me better instructions? Do I knot the tread? How big of an opening do I leave? How do I tie it off? ETC????? Thanks!!!