“CAUTION: May explode or leak, and cause burn injury, if recharged, disposed of in fire, mixed with a different battery type, inserted backwards or disassembled. Replace all used batteries at the same time. Do not carry batteries loose in your pocket or purse. Do not remove the battery label.”
–Warning on the back of a pack of twenty AA Duracell Coppertop batteries, copyright 2010 P&G.