Is there a pet bull?

Well i went through a couple of Pet threads and saw someone talking about taming a bull? is that possible? if so where?

The is a lvl 5 Rogue Bull in pre-searing, associated with the mesmer profession quest. It is not tamable.

I have seen alot of posts of people who want to tame the bull, but it is not possible at this time (and since the bull is a quest mob, probably never)

Professor not using search .