Oh and they aren't my dogs but there areBUT...ahundred years ago I obedience trained dogs...and if I got a dog who was angry and under-socialized I put a "pinch" collar, those Mastiffs(?) are wearing halters, you cannot have the same control with a pis*ed off dog the size of those. Can ya?
Bordeaux, Rott and Weimaraners pictured above by Mark1