Carry on, but not more that one draught per test!
The victim, I mean, test subject.
I should probably explain why I own this, but I can't. It may have something to do with the first picture in this thread... or it may have just been in a box I bought. I'm not telling.
Actually, I got it from Tentoze. But he'll never admit it....
if you waste all that holy water on this foolishness before I get a gallon, woe be unto you.