Mine happened a few days ago:- took a scenic ride in through the countryside and along a narrow lane was halted by farmworkers trying to usher an escaped (and very angry) pig into a trailer. They had boards and were working as a team. They advised me to stay well back, (I had already worked that bit out for myself) and possibly go another way, but no way was I going to miss this, so I parked up the bike and clambered up a tree to watch the proceedings and make my phone call. The pig was hammed in by tall hedges and it kept on trying to ram the boards, accompanied by loud squeals, and snorts and shouts, which because it was so huge would surely have been like being hit by an express train - so the men had to scatter and then re-group. Eventually the poor creature made a gap in a hedge and hurtled off into an adjacent field. They ran after it. Pity I didn't have a camera.