Survey of the use and outcome of confrontational and non-confrontational training methods in client-owned dogs showing undesired behaviors.
Methods used: Hit or kick, growl at dog, alpha roll, stare at or stare dog down, dominance down, grab dog by jowls and shake.
Beware: you could get your face ripped off!
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T48-4VFJS1D-2&_user=10&_coverDate=02%2F28%2F2009&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=d6d57ecba5156e5127f36d0f29f76816