Putin used to break Bush's balls about having the bigger, tougher, stronger, faster and meaner dog

http://en.wikipedia.org/wiki/Koni_(dog)

When US President George W. Bush visited Putin's residence at Novo-Ogaryovo, Koni was there to greet both leaders. Putin was reported to have remarked to the visiting President that Koni is "{b}igger, tougher, stronger, faster, meaner — than Barney", which aides to Bush said was "a mark of a friendship strengthened by a little needling."