Dr. Felix Rodrigues is a faculty member of the Department of Agrarian Sciences and Environment, University of Azores so one expects this to be an informed claim. Post one of those videos.
In this BBC video about the Azores Dr. Felix Rodrigues tells us four legged animals can't drink from beneath their feet. I've never heard of this before and couldn't find anything about it. Does anyone know about this and/or where I can find out more about it? Google didn't help.