Mill'E-Max is the brains of the household; paws down. She taught herself to unscrew the caps off of bottles about six years ago. Mister Pawpower really likes wine, but I prefer beer. So he found these small bottles of wine which were only one serving. We were in a post-Katrina house at the time, which didn't have much furniture. Mr. Pawpower sat on the floor-- bottle in hand-- and became distracted by the phone. Mill'E-Max picked up the bottle and started manipulating it. She figured out that she could unscrew the bottle with her back teeth. Mister Pawpower ended his phone conversation just in time to see Mill'E-Max tilting her head to the side, while the now cap-less bottle was tipped with her forepaws aimed right for her mouth. I am not kidding.
Ever since then, Mill'E-Max will take any chance she gets to screw the lids off of bottles. She won't pick them up at random, but if I direct her to pick it up, she then thinks of it as "her bottle." And if i set her bottle down on the floor or a chair or the bed, She will then begin the task of unscrewing the lid.
Today I asked for a water in the fridge. She brought it, and gave it to me. I set it down on the bed to go play tug with Bristol, and three minutes later, I find her on the bed, front paws wrapped around the bottle, back teeth clenched on the lid, and a shit-eating grin on her face, as well as a wagging tail and that set to her ears which meant she was thinking. She had been sitting there, waiting for me to notice that she had the bottle. I did get it away from her before the first turn of the lid.
If anyone ever tells you that dogs don't have senses of humor, don't listen. Or I'll set Mill'E-Max on you!