joycenalex, Fawn will sometimes chew on the ear pieces of my glasses, But all I have to do is pick him up or move my glasses. For a correction method concerning Mojo, you might keep a spray bottle of water near by, and when you see him begin to bother your glasses, the give him a short and quick spray. That is how I train my furkids when they do things that I do not approve of -and it works!

.........wayne