Only time I've ever been engaged with a boar by accident was in w5 when I was a noob. Was making myself a quern and carrying it back to my camp when it came rushing out from the distance, didn't have enough time to put the quern down and run, and of course it finished me off. On my second world 5 char I died while foraging to a rushing bear (who seem to move MUCH faster than a boar), that one pissed me off a bit more because I should have known to just hearth as soon as I saw it coming near me. I was also out of water and low on stam too, prompting me to never drink all my water again unless I was actually in danger (as well as carry more than 1 bucket).
IRL you live and learn, in HnH you die and learn. Such is life in the hearthlands.