celery?

Have you ever seen a dog eat celery before? I didn't know they liked it. Apparently mine does. I had celery in my fridge that I bought at Costco and forgot. I took it out yesterday and took off all of the wilted pieces and threw them in the garbage. Later that night Thunder went into the kitchen and then snuck into the laundry room where his bed is. That was odd, I thought. Minutes later he went into the kitchen again and came out with a green stick in his mouth. What is he getting into? I got the camera and followed him and found him munching on celery. He thought he was being so sneaky. I let him have all of the celery he wanted and of course I was the one that had to let him out at 3:30 am because of it.