Glasses scratching the lense?

Was hanging out in a Bigscreen Beta chat with other equally amazed Quest users. The subject of wearing glasses vs contact lenses came up. I noticed my eyes with my contact lense get a little dry but not too big of a deal. But I put in the spacer and used my glasses which worked well too.

After mentioning this, someone said to be careful because he heard that some glasses could/maybe/possibly scratch the lense of "My Precious". And we's would not wants that to happen. No no no.

Anyone else heard about this or know if it happening?