We've never really had a bad yard accident with our dogs; just a little rough play that got a little rougher than I wanted (a few scratches. nothing big, nothing bleeding badly) and a few minor things like one of my females ripping open her pad on a piece of brick. Minor things like that I take care of myself, no big deal. I did have 2 strays get under my fence and attack one of my dogs about 4 weeks ago. My husband and roommate were outside working on the fenceline when it happened (thank a deity of choice)! My husband grabbed our other 2 dogs that were outside and the roommate grabbed the stray that was on my dog and kicked at the other stray who ran back under the fence. When they got my other dogs inside and were able to get a good look, my dog had taken a big chunk out of the strays neck and my dog, Saint, had two huge gashes on his back leg, some very small punctures on his neck and nail scratches on his side. They tried to get a leash on the stray so we could have it checked out and get it in rescue or something but it kept lunging at the guys and my dogs were going nuts trying to get to it (they were all in the house). It managed to get back under the fence while the guys were trying to get a leash and get things settled back down. Saint had to have 40 stitches at the emergency vet to the tune of $430.
Our neighbors have promised to start keeping their gate closed so the neighborhood starys can't keep trying to dig from their side (which is what we keep having to fix). We still have not seen those 2 back around so we are not sure how bad their injuries were. I was not home but my husband says we were very lucky this didn't end up a huge 5 dog fight.
Spay & Neuter your pets, weird friends and relatives!!