Make sure to ignore inappropriate behaviors like jumping because being ignored is a negative consequence to most dogs and a very powerful dog training technique. (animalbehaviorcollege.com)
These are extremely powerful dogs with a strong instinct for animal aggression; yet they are also known for being incredibly friendly, loving and loyal to their human owners and strangers. (uvma.org)
They can quickly take over if you let them, and they are very powerful dogs. (topdogtips.com)