Actually, I've heard that animals can and will drink their own urine if need be. Can't remember the reference, but you can do a google search and see of you come up with anything. Perhaps Shirley's wellness cafe...?
I don't think Andreas would like to be considered somebody's guru, if you don't mind my saying. I'm not his spokesperson, but he always emphasizes using your own intuition and instincts to come up with what really works, and doing muscle testing if in doubt.
This is the sign of true "guru" (=the light that dispels the darkness of ignorance); communicating with one's own wisdom to find one's own truth -- and recognising that one's personal truth can never be another's.
In Andreas' case he *is* guru, as opposed to *a* guru or *someone's* guru. As are all of us.
Sorry to butt in & hope nobody takes offence (hanna). Just my 2c because I've had this discussion before.