Nice review, bmw.
Regarding your tear damaging the lens, whatthehell, do you have acid rain tears?
I have no idea. But seriously, the lens actually melted. If you run your finger across the inside where the tear was, you can feel the material raise up. Bonkers. Moral of the story, just nut up, save up, and get a proper set of goggles.
I travel with 2 pairs of Oakley Splices, one with the Black Iridium lens, the other with the H.I. Yellow (for different light conditions). Just added a pair of Dragon Rogues to my small collection, wanted to try them out (for $29.99 on Whiskey, why not?).
Make sure you don't drip any of those acid tears on your automobile, that can do some serious paint damage.