Ok, so the three things a ninja must not be obsessed with are Women, Money and Sake;

Ero-sennin is obsessed with women,
Tsunade is obsessed with money,

So that leaves the compulsive drinking for Orochimaru [img]i/expressions/wine.gif[/img] [img]i/expressions/beer.gif[/img] [img]i/expressions/wine.gif[/img] [img]i/expressions/beer.gif[/img] [img]i/expressions/wine.gif[/img] [img]i/expressions/beer.gif[/img]