I had a strange encounter one time, in a 109, doing a recce in a field just outside Liverpool. I had a timed arrival there in a couple of days and wanted to be sure I had my sums right and foolishly made the approach without a thorough recce. I approached into the field and whilst in the hover, I was aware that there were a couple of sheep out in my 3 o"clock, running around. I didn't want to hang around so I did a lockout turn before I departed and to my surprise/horror/amazement, there were no sheep, it was actually two Rhinos and they were now charging. Luckily I was just on the other side of a safari park fence and the Rhinos stopped short. That would have been a difficult explanation to the subsequent BOI.