way back when they used to easier to tear off, now, not so much
actually I gave a towel to my uncle for x-mas and he cut it up using a little square for his glasses. it shocked me a bit, but then realized it wasn't freying, hmmm
well anyways, I have been known to tear it off and cut off the serging thread that comes out when you do that
probably the most correct way is to pull and cut at the holes and then pull that little piece out that is left behind.