My Polaroid digital camera quit working. I changed the batteries. No luck. Still dead.
I went and bought new batteries... the $8.00 kind even though the "regular" kind was on sale for $3.00. I put them in, being very careful to get the polarity just right. Still dead.
I checked out new digital cameras to replace it. There was a nice Fuji $199 model on close out for only $133. That's a bargain. But I am losing my cool. I was hesitant to buy it. Why? I needed a camera. But, no, I passed. I took my dead Polaroid home.
At home I took out the new batteries, to save them. No need to throw out new batteries with the old camera. Then, on a whim, I put the batteries back in the camera WITH REVERSED POLARITY. Can't hurt the camera now...it is shot anyway.
Well, of course...it worked. The camera came on just fine. In spite of the fact that I had taken special pains to do it right, I had put the batteries in backwards. I nearly threw the old camera away.
How dumb can you get?