Whew, just when we were getting placid on our daily commutes, that little microcosm o’ life, there comes this video in which two ostensible strangers battle it out — to the nail! — over whether the one should or should not clip his nails on the subway. (He should not.) Still, this is amusing, probably because it didn’t happen on April Fool’s Day. Upon being informed that it’s gross to clip one’s nails al tren, our clipper, a “nail-clipping performance artist” says, plaintively, “Lay off of me, and let me clip my fucking nails,” then sits next to the nail-clipping-complainer and clip-clip-clips. Whadda guy.