Even a barnyard billy is something to respect.

"Violent behavior

Mountain Goats have an aggressive social structure. The goats often push and shove each other –sometimes falling off cliffs. Adults will sometimes lift smaller goats and toss them, although the victims usually manage to catch themselves.



In Alberta, biologists Francois Fournier and Marco Festa-Bianchet found that Mountain Goats have an average of 3-4 conflicts per goat, per hour, throughout the entire year –and 5 or 6 conflicts per hour are quite common! Bighorn Sheep, on the other hand, only experience conflict once every 2-3 hours during the mating season –despite their reputation for continually butting-heads.



Mountain goats do not butt heads. Instead they poke each other in the hindquarters or on the backside. As a result of this constant fighting, male mountain goats have developed an extra-thick layer of skin to protect their behinds.



Biologists think that this aggressive behavior among mountain goats encourages the herds to disperse. Small bands of half-a-dozen animals have a better chance of survival in harsh conditions where food is scarce."

http://www.angelfire.com/punk2/walktheplank/mountgoats.html