I had two angry Korean guys get out of a truck and chase me because I was taking pictures of these thingies sticking out of some trees next to a public path at Oedolgae. They were irate, and came running at me shouting 'No no no no no no!' and pointing to my camera. WTF. I happened to be next to my bike, so I sassed the fuck out of them and sped off. Bitchezzzz!
Turns out it's legal pesticide to help mitigate the pine wilt disease that's been ravaging Jeju's pine trees this year. Not sure why they were chasing me then. Maybe they just wanted to stomp a waygook. Fuckfaces.