I recently worked at a large retail store. The machine would only ask me to check the customer's ID if he made a purchase greater than $100, though it would randomly ask for smaller transactions as well. I would compare the signature and ask to see an ID if the card wasn't signed. Even so, I could only compare the signatures after the sale went through, so I'm not sure what I was supposed to do if they didn't match.
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I know a few people with varying degrees of Aspergers. There is more to it than simple introversion.
I recently worked at a large retail store. The machine would only ask me to check the customer's ID if he made a purchase greater than $100, though it would randomly ask for smaller transactions as well. I would compare the signature and ask to see an ID if the card wasn't signed. Even so, I could only compare the signatures after the sale went through, so I'm not sure what I was supposed to do if they didn't match.