Feral pigs are becoming a big problem in my favorite hiking/camping spot. I ran into a herd of nine pigs ranging from tiny babies all the way up to a 100-pounder last Saturday. My response was to wave my hiking stick over my head and roar like a monster. It seemed to work this time, but is there a better/safer way of dealing with pigs?

Sidenote: I have several effective firearms, unfortunately they aren't allowed where I'm hiking.

Thanks,
Blast