In Canada, there are limits on how many coins you can use to buy something. The 1985 Currency Act states that there are different restrictions based on the kind of coins you're looking to pay with, for example you can only use a maximum of 25 loonies (the Canadian dollar coin) in one transaction. The exact amount a person can be fined is undisclosed, but you do have the law on your side if you're stuck in a queue waiting for somebody to count their small change for a big purchase.

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