"...I don't think my keyboard even has some of them..."
Different keyboard hereabouts, The Japanese one is the same as the US I believe. As for pronunciation, Google Translate is your friend.
"...I don't think my keyboard even has some of them..."
The bigger picture here is Bacon. Kill and Eat the damn things.
Is your camera up and running yet, I'd be curious to see this little bit of wilderness you've carved out for yourself.
I know nothing of Boar, so this is thrown out from a seat of relative ignorance - I know that people use Geese as guard animals in the UK. Would a flock of half dozen geese be of any use to deter a boar? You could then eat them when the visa runs out...
Apologies if this is a really stupid suggestion.
J
All in all, though, get a round ball mold, a slug mold, or a buckshot mold for your shotgun and learn lots of recipes for pork. Do what we do in Texas when we can and build a large, outside barbecue. Make a lot of good barbecue sauce, invite friends over, roast some pig, and drink lots of beer. A smokehouse is also another consideration.
OK, killing the pigs is out, must have missed or skimmed over a post or two in the thread. Where on the planet are you? You used the phrase 'gai-jin' which is Japanese for foreigner.
Best solution is to buy a portable electric fence unit. Cost about $ US 300. Set it up so that it is about 250mm above ground. Tie a few little bit of tasty scraps to the fence like apple peels or bits if banana. The pig will sniffcan taste the morsels and get a zap of about 1000 volts of harmless very low amp electricity through their snout. They will never approach the fence again. Gallagher make good fences.
Feral animals need to be exterminated. Period. Whack the pigs any which way you can........