One thing I always hated about Circuit City is how the salesmen are almost always immediately in your face trying to sell you what you don't want.
I remember messing with one of the dudes once. I was looking at DVD players (when they first came out) and a salesman came up to me and said, "So, you're looking to buy a DVD player?" I said, "Not until it has a record button on it." He said, "That will never happen." I told him, "Sure it will, just give it some time."
He left me alone after that. Guess who was right?
One line I always thought would be hilarious, but have never used is:
Salesman comes up to you...."Can I help you?" and I'd say, "If I want your attention, I'll break something."
As for CC going out of business. Meh....haven't went into one in years anyway.