What are the negatives of using an ATM card?

I dont know of too many negatives for using an ATM card. I love having one because there is always a Bank of America ATM around whenever I need one. As long as you dont tell anyone your passWord, you should be fine if you lose it. But if you do lose it, report it anyway to the bank just in case, this way your not responislbe if there are any charges on it.