My dad's mini dachshund/lab, Riley, ran under our van and scraped his back on a sharp piece of metal that was sticking out; he just bought the van from someone and hadn't noticed the piece of metal sticking out on the bottom. My dad heard him whining and went outside to see what was wrong and when he checked him over, he found a deep gash near his back. He took him inside and washed any dirt or anything that might be in it with water and sowed it up a little, just to keep any dirt from getting into it. Riley is seems to be acting OK, but by what my dad described, it sounds pretty bad to me. He called me and I'm not there so I don't know any other details about it except the gash about the size of a marble, it was bleeding, and he sowed it up temporarily to keep anything from getting in it and getting it infected. It's Sunday, so the the nearest vet (which is where he usually goes) is not open. What should we do??? I'm worried that it will get infected or something. Riley is a pretty old dog; he is about 9 years old now (we got him in 2000). Oh and I almost forgot to add that my dad said the gash seems to be healing up already. Any advice? Thanks! I hope Riley gets better soon and it heals up quickly. (and sorry I don't have that many details about it; if I was there I would have been able to give more info, but it's harder to explain when I'm told about it on the phone. I will call my dad back and post anything more on here that may help.