<p>^ sounds like a burette</p>
<p>Isn’t one of the, like, first (!) rules of chemistry class not to allow any contact between yourself and whatever substances you’re using? You should’ve tried dripping a bit into your eye, too, just to be doubly sure that it wasn’t water 
(I hear that’s how all the real chemists do it, too!)</p>
<p>And what kind of teacher tells the class an HCL solution is water, lol?</p>