Hi simbo65
I haven’t actually seen a hog self annointing with urine. Maybe the hog got some other smelly substance on it’s spines, which it wanted to mask. That sort of thing isn’t unheard of with some other wild animals. But unusual smells can sometimes apparently trigger self annointing. Maybe the hog (who urinated) had eaten something unusual and it smelt strange (?) It would be interesting to know if it was the hog whose urine it was, but I’m guessing you can’t be sure from your video.
Keep a look out for it happening again.
