Well, I know that it could injure other types of dogs, but really I don't care about other dogs. I care about MY boys. If I injure another dog, too bad for them. It sounds heartless, but that's the way I feel. I carry mace and a really good knife for other dogs (there's a lab/retriever thing that is really vicious on the end of our block and I'm hearing rumors that she's killed other dogs before and she has came within INCHES of biting both me and my husband when her owner let her loose, boy did she get a bitching from me!), but ABPTS are VERY common here, which is kind of nice because most of them are from shelters (although I know there are some BYB's like there are everywhere) and everybody loves them, esp in our little town. There are at LEAST 7 within walking distance of my house. Granted, I've only seen ONE loose APBT (he was loose for 2 min and his owners were in the neighborhood). MOST of the owners are pretty responsible... But just in case. We take our walks at about 11pm at night, so chances are if a dog is loose, the owners don't know it and won't be along shortly to help. I'll PM boogeyman and ask! Thanks!! I'd really rather just buy one, but maybe DH will like to try to make one! LOL! Then we'll have two!