Water isn't like anti-alcohol or anything, it just minimises the hangover effect it has on you. You can still get totally trashed and feel like $#!^ even if u drink water.
AND give you a bad hangover
the only time i had a real bad one was when me and my cousin robbed her dad's liquor cabinet and well we didn't wanna empty any bottles so we had a little bit of EVERYTHING
sooo after that i learned my lesson
now it's the same kind of drinks all night
and atleast 2 glasses of water before going to sleep