Nikko is a year and a half old and I am still waiting for him to grow out of this gross behavior. I have tried Deter, these pills I bought at the pet store and they did nothing. I try to get to it before he does but sometimes I don't and he gobbles it up. It so gross!!
I too am looking for ideas on how to stop it but for anyone with this problem, don't buy Deter. Save your money because it doesn't work.