Take some good advice. Do Not leave a growly male curdog you care about in a pen with a bulldog (if it's a true bulldog). They may have grown up together and never had a problem with each other and you may even be the "ALPHA MALE" lol. And that curdog may be bad to the bone and done whooped everything around but after about 30 minutes he's gonna be wrecked to the bone and a little while later dead to the bone..
yeah see I guess that's where I make sure I DO have them apart lol I wouldn't ever put a growly one with them...or even next to them for that matter