• Attack dogs
• Bad dogs
• Bad dogs, at times
• Black flies, notably
• Chompers
• Dangerous dogs
• Flies, fleas et al.
• Incisors, e.g.
• Insect pests
• Mean dogs
• Midges and mosquitoes
• Mosquitos, e.g.
• Muzzle wearers, one hopes
• Muzzled dogs, e.g.
• Nail-___ (tense situations)
• Pernicious pets
• Rats and fleas, among others
• Some dogs
• Vampires at work