My favourite quote comes from Larry Ellison when Oracle was just starting. He would go around to the clients, promise them vaporware, and then force the programmers to ship seriously buggy code, which kept on crashing with dire consequences.
On one of the occasions when he was phoning back to headquarters from the road one of the developers asked him how many people had asked for their money bacK.
"Oh, nobody's asked for their money back yet" he replied. "A few have asked for their data back though!"