Ref the debate about packs of feral dogs after TSHTF

[Highlander]

....and it doesn't take vicious dogs to do this either, a vicious dog is the dog who is on his own, who first growls and then attacks,... in the case of dog packs its excitement,... a bit like a gentle, softie [man] who doesn't want to hit anyone,...who is teased and egged on to do something,.. then once he starts it difficult to stop.

Dogs follow the group leader, and excitement takes over,.. if you can remove the instigator the rest will stop

15 attack dogs is a big pack, more than would be normal in the wild, usually it would be more like 5 or 6 who go after prey,... it might be an indication of how domestic dogs will hunt after an event,... scary indeed