[davchana]

True. The only time I have walked out of store (maybe once or two times) is when I have already used card few times previously with unplanned $50+ purchases. Now this time I only need $5 thing, & they say there's charge of $0.50 for card.

I also was in your similar example. In US I have a car, so very rarely I use public transport which is not Bart. I landed in Toronto at 2am, got into Bus Google Maps told me, Bus driver said $2.50 fare, cash only. I gave him American 3 dollars, and he gave me Canadian $0.50 change back.