So let me translate that for you. You parked your car. A local parked his bike, unlocked, and with the key in it in front of your car. Some foreigner spoke to him in a language he didn't understand. He noticed he'd forgotten his key and retrieved it and left again, again leaving the bike unlocked. The foreigner returned some time later to find the bike still there. He pushed it out onto the road and drove off, leaving it there. People are rightfully angry with the foreigner. The local had left the bike unlocked so it could be moved if necessary. The foreigner, obviously oblivious to the local custom, becomes angry and posts something nasty about Thais on AN, instead of reparking the bike and going off thinking what a considerate Thai.