These regulations are improved and for that this pet owner is appreciative. However, in the event that my veterinarian should utilize vet school externs or trainees, at any level of their training, in his or her practice, I want nothing less than to be directly informed of this, both as a general circumstance and as a particular circumstance in the case of my pet, and to document my approval with my signature on an informing form. Mere "signage" - where, anyplace on the premises ? - is inadequate. This is not in the least burdensome for a practice carried on with any level of professionalism.