> Here in the US cashiers tend to use a special pen and verify that $20's and above are > legit. I have seen this practice on the rise in the last +10 years though this is not > as invasive as having to show a rent-a-cop your store receipt when leaving a CompUSA > or Best Buy.
Which I never do personally. I just walk right past and if they get huffy I say, "if you think I've shoplifted something, feel free to call the police; otherwise please get out of my way. Thank you." ...
At least at Fry's, where I do the vast majority of my non-online shopping, they don't even make an effort to stop you or even talk to you if you just walk right on by ... but when I lived in NYC, the young punks they hired to do this job at BestBuy and the like were very aggressive. Guess it's a California vs. New York thing ...