So I did my first Deadmines run today in World of Warcraft. Our team was doing well, only wiped once. Then right when were about to go on. Some guy just leaves because he's "bored"

What a piece of dog-vomit!  How dare he ruin our good time and Loot because he's bored. People like this should be shot in the head.  I kid but seriously, very bad form.