I usually do that too. 99% not an issue. But as it gets more pervasive and they ask for more and more. I have encountered at least a dozen places that the clerks workflow can not proceed until I comply. So usually it's a "I don't do that" followed by "it's required" to which I reply "no it's not" and it's down hill from there. Sometimes they're smart enough to feed the machine dummy data and not argue with me. Usually it makes me mad so I don't exactly handle it with grace either (stubbornness I don't get rude or abusive)
