I've been trying for 6 years to catch one of these sparring matches. Even though the light was poor on St. Patrick's day I drove out to the island and was lucky enough to be in the right spot at the right time to catch these two younger bulls sparring. It lasted for less than a minute and I was totally surprised when it broke out.
They may be smaller than the big bulls but they make up for it with having much sharper horns.
As the boss says "It is all fun and games until someone loses an eye"
This ended quickly and there appeared to be no hard feelings.