Borrowed acorns

"Um...do you want me to leave these in your bag?" The bemused bagger at Trader Joe's held up an acorn. There were actually about a dozen in my reusable bag.  I have a 15-year-old oak tree in front of my home. It's lovely, but nearly barren of acorns. So, when I spot another oak with a good crop, I scoop up a few for my local squirrels.