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Originally Posted by Radar
It never crossed my mind. Good question. I'll have to ask someone running a cart. My guess is they have someone they can trust watch the cart while they take care of business.
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Philly news does stories on this when things get slow, although mostly about our world renowned soft pretzel vendors.
Video of the guy sneaking off to a corner with some handy bushes is frequently a part of these pieces. Some of the guys do try to maintain some basic sanitation, mainly by rinsing their hands in the ice they are using to cool down the sodas, if they are also hawking sodas.