This article is from the Mastiffs Breed FAQ, by mmcbee@access.mountain.net (Mike McBee) with numerous contributions by others.
By nature, Mastiffs are eager to please. This makes them good
Obedience dogs. But like any other breed, temperaments vary
between individuals, so some Mastiffs are better candidates
for the Obedience ring than others.
Some Mastiffs are more laid back, aloof, and lethargic; while
others are more outgoing, inquisitive, and athletic. Though
both types of temperaments are trainable, the latter of these
two temperaments would be better suited for competition in
the Obedience ring.
 
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