Sloppy Drinker + Insatiable Thirst = Congratulations, you've locked your Vampire into having almost no time for anything but constantly tending to their Thirst Need.
Really, Thirst is annoying to handle if you aren't deeply drinking from Sims.
Bought Plasma Packs restore like 15% of the bar, Frog/Fish ones give slightly less, and Plasma Janes/Fruit Salads barely give ANY thirst.
And raw Plasma Fruit is just as bad. Quality doesn't affect their thirst satisfaction, it's like 8% of the bar per fruit.
I wish it was balanced like Hunger for normal Sims.
If a single serving of pancakes can bring a Sim from near-starvation to fullness, then I wish a Vampire didn't have to hunt down 2 to 3 Sims for a Deep Drink or down like half a dozen Plasma Packs or like 15 plasma fruits or spend hours eating/drinking multiple plasma dishes/drinks to go from empty to full thirst bar.
And yeah, what is with non-Vampires just grabbing leftover plasma fruit salad to eat?
It just makes them puke, but they don't even stop after that! Dummies!