Although perhaps, you're well meaning when you say "I've seen you in here before" there is a slight chance that the mildly OCD person hears something else like:
"I see you in here every Saturday at exactly 9:25 am
carrying your battered off-white canvas shopping bag and you circle the
store clockwise stopping only at the condiments stand and refrigerator
case. You never buy anything except on the last Saturday of the month
when you buy a jar of Amish peanut butter, paying in cash with the $5.22
already counted out and then you put an extra penny in the change cup
because you think odd numbers are safer. See you next Saturday, freak!"
and she's probably right...