Bob Dylan and the dog

Someone (I think it was Rabbi Feller but I´m not sure) was being mekarev Bob Dylan (I won’t try to explain to any of you who he is . .) and it was around chaf beis shvat, and he told Bob to come bemenachem avel the Rebbe, so Bob came and he calls the shliach to say he is outside, and the shliach came out and saw that in the back of Bob´s van was a huge dog, so he asked what’s with the dog? So Bob says "it's for the Rebbe". So the shliach answers "Bob, the Rebbe has enough dogs"