Is it just my imagination, or am I right?

Question

I picked up some groceries at Super Wal-Mart this afternoon. When I got to the frozen foods, I could see all the cases were dark, but as soon as I started wheeling my buggy down the aisle, they lit up one by one! Is this some sort of measure to conserve energy - sensor-operated case lighting (?) - or am I imagining things? Just curious, I've never seen anything like it anywhere else!

Answer 1

You are right, its an attempt to save energy. My Wal Mart does the exact same thing.

Answer 2

creepy