[header] How to haggle and win [title] Stay calm. [step] When you ask the price of the item and think " what? ! " when they give you a price 10 times more than you're willing to pay, you need to try not to look too shocked. If you go for the whole " that's ridiculous! " approach, you won't get anywhere; you need to make the seller feel guilty, not angry. 
[substeps] If you make this mistake, apologize and move on. You've already shown your darker side, and the seller is likely to be somewhat wary of you.