Weird

I was sitting in the library today reading 4, 5, 6, when out of nowhere I was approached by a certain contracts/property/Sudan teacher who may or may not be senile. He looked at me for about thirty seconds then placed what appeared to be an empty saline container (I've only seen them used in nebulizers before) on my table. He indicated to me that it was eyedrops, gave me a nod, then left. I have to admit, that took me somewhat by surprise.