most of quills are usually on outside ,not on tongue.
bad ones are deep inside their nose.
I have to agree with Dale H on this one. I have found them everywhere on them, and it's a hard time when 2 grown men have restle a dog in order to get them out. I also agree with walksinair at cutting the ends of them off, but the dog still doesn't like it very much. Still though they will go back at them again if happen to come across any of them.[:@]