Are Drug Reps Going to the Dogs?

Is it unethical for my dog to accept treats from a pharmaceutical representative? 

Reps can't influence my prescribing with free pens and sticky notes, or by taking me out to lunch, but where there's a will there's a way. Last week a drug rep brought treats for my dog who always comes to the office with me. (Even if they were FDA approved, I'm sure this is an off-label use.) At least the drug name doesn't appear on the treats.

Now every time I write a prescription for the rep's drug my dog rolls over, and when I write for a competing drug he growls!