Either you burst into flames when you step out into the sun, are allergic to garlic (I couldn't live with that!), and have only blood to nourish yourself. In this day and age?! When there's all sorts of shit in the bloodstreams of people?!
Or you suffer an uncontrollable episode once every four weeks, tearing up everything around you, and potentially killing loved ones. Heeeeell no.
And to top it off: neither will make you too favorable in the eyes of the authorities, and it would only be a question of time before the SWAT (or equivalent) team would knock down your door and put an end to your misery. So how would that be cool in any way at all?!