Exchange rate Memes

Ah, the classic Japanese Yen hack! Some poor soul wrote a currency conversion function that divides the exchange rate by 100 only for JPY. Why? Because the Japanese Yen doesn't use decimal points (1 USD ≈ 150 JPY), so someone "fixed" it by dividing by 100... which is completely wrong and will utterly destroy your financial calculations. But hey, that one time when the exchange rate is exactly 100, the code will accidentally work! Just like that broken clock... right twice a day.