I remember the first time I was ever kicked from a guild. At the time, my main character was my very first rogue, who was a new level 60. I browsed around the realm forums for any guilds recruiting and found one that seemed to fit my schedule. I started raiding with them, and everything seemed to be going great. Well, it was going great, until I decided to argue with a hunter about weapons. The raid had a Core Hound Tooth drop for them in Molten Core, and a hunter had used his DKP to win the item. I saw him walking around Ironforge with it the next day.
I argued with him that a rogue should've had first priority for it, since it's one of our main weapons. His stance was that any weapon a hunter could use was a "hunter weapon," or else Blizzard would've made it so that they couldn't use it. His other weapon was an Azuresong Mageblade that he claimed boosted his Serpent Sting and Arcane Shot damage. It turns out he was a high-ranking officer of the guild, and our spat was grounds for a /gkick. Luckily for us, there are a few items in game that rogues can take claim of. These items were designed specifically with us in mind and have become instantly recognizable symbols of our class to everyone.