I've had many, many, many Kirkland brand batteries leak in the various devices at home so I switched to Duracell. Now you're making me wonder if the Duracells are going to leak too.
On a side note, I've been able to save 99 % of all the items that the batteries have leaked into. All it takes is a small screwdriver a handful of Q-Tips, and a bottle of white distilled vinegar.
Pull the batteries and carefully disassemble the device. Dip a Q-Tip in the vinegar and it will eat through the corrosion like a hot knife through butter. Just be careful to keep the vinegar out of the electronics. Let things dry out and reassemble.