THREATEN TO GO ELSEWHERE
To put it simply: it would be best that you did. And this has to be the lamest of threats. It's not really a threat, it's a tease because all the associates thinking when you say, "I'm going to go somewhere else," is "Cool, were you going to leave now or in a few minutes?" Either wayl, it's someone else that has to tolerate your endless sulking and whining. This method is really old school and is rarely effective in today's retail landscape because, well, we know that you would anyway. Go somewhere else peacefully and quietly--don't make a scene. Or else some associate will give you a few suggestions of where you could go.