Preventing Fear and Aggression
Bite inhibition and Time Outs
Puppies are hard wired to play bite. It’s not aggression, just play. It’s also part of how they learn to control jaw pressure. Because of this, it’s important that we not require them to stop altogether.
Not allowing puppies to mouth us at all means they never learn to control their jaw pressure. Should a true bite happen in the future (should Fido be cornered and feel threatened, for example) there’s more of a risk of physical damage because he never learned to control bite pressure. So it’s in his interest and yours that he does.