When is it too late to train?

Never ever!

Duke is 9 and I'm STILL teaching him things!!!:):eek:

Like everyone else has said - Never! ;)

When I worked at the vet clinic, I taught my boss' 12yr old Rottie mix a couple tricks, including spin, shake, left and right, and catch a treat in the air. :)

Never I didn't start training my first dog until she was 10 a black cocker . I was 12 and joined 4-H I had the oldest dog and the leaders daughter had the youngest. a 4month GSD we did all kinds of community service presantations.