Direct composite veneers

Do most people in this group do direct composite veneers? How much do you charge per tooth, what precautions do you tell the patient to take and how do you handle chips that were caused by the patient (ie cost) or do you simply offer to comp the first fix?

I did my first case for a teenager and he recently informed us he has chipped it. Just wondering what I should do to set proper expectations. I’m also worried that whatever additional bonding we add to it, it will come off again. Clinical tips would be appreciated too. Thanks!