You guys need to play WAR or WoW or something for a few hours, you'll get it all this way...
But the main term... PUG, you must know that...Group composed of very random, very bad (usually) people, healers who run around and bash people with sticks, tanks who think "that bow is ideal weapon choice" and so on, hehe.
Something like two policemen on Discovery, where one says "You are clear, continue" to trader, while the other says "Drop the cargo" and shoots the trader at the same time. Gah.
I buy things I don't want to make an impression on people I don't like.