Return of the Warblog

Now, that'll be a joke!

I detect trickery, speaking as someone who's drunk his fair share of vodka (and then some), the thing is you usually don't have a hangover from vodka.
During my heavier drinking days, I've gotten really, slap-happy drunk (complete with embarrassing behavior we won't dwell on) on vodka and sometimes gotten a headache while drinking but the next morning there was no trace of a hangover.
You have to get absolutely pukeing-black-out drunk (another of my accomplishments) to feel bad the next day (and though rare, a vodka hangover is even worse than a Soviet-champagne hangover).

Skyy Vodka is the "purest" on the market. You'd have to drink gallons to get a hangover.