1) Attack dogs 2) Bad dogs 3) Bad dogs, at times 4) Chompers 5) Dangerous dogs 6) Dogs of a kind 7) Flies, fleas et al 8) Insect pests 9) Midges and mosquitoes 10) Muzzle wearers, one hopes 11) Muzzled dogs 12) Nippers 13) Pernicious pets 14) Pets feared by postmen 15) Rats and fleas, among others 16) Some dogs 1) Gnats