Yesterday, I was stung by a bee while walking at the zoo. After icing down the sting for a while, I continued on my way. A few minutes later, however, the bee-sting began to hurt again. I happened to be walking past a vendor selling bottles of water, which were sitting in a large bucket of ice. I don't know what possessed me, but for some reason, rather than asking the vendor if I could please have an ice cube, I just took one and began to ice down my bee-sting.
I recognize that, for a theft of less than a שוה פרוטה, there is nothing for me to repay. I also cannot
easily go back and apologize to the vendor and ask for מחילה. Nonetheless, stealing is still a sin. What can I do for כפרה?