last night our 3yr old 15lb terrier mix got out and was gone for a few hours when he showed up i could tell he had been in a fight, some bleeding on the left upper portion of the leg other than that covered in what looked like slobber hair all nappy and limping, i bathed him and could not tell where the wound was, he was really soar and wore out. my question is scents he appears to be okay should i still take him to see a vet or wait to see how he is doing tomorrow. this is his first time in a dog fight and may have gotten off easy.