I believe your policies and a tag included with your booties, should most definitely include appropriate disclaimers. It shows that you are a mindful store owner who cares about your customers and your work.
"While it is clear that disclaimers provide no guarantee of any shield from liability, the author and publisher of these materials should include a disclaimer so as to be able to at least have some claim to a defense."-IVAN HOFFMAN, B.A., J.D. (
http://www.ivanhoffman.com/disclaimers.html)now for my disclaimer... This advice is not intended to be legal council. Please consult a lawyer. hee hee!