Magic Beans

Mom and Dad's house is located on seven acres, mostly forest, with the exception of their nicely manicured lawn. They have all types of woodland creatures that visit on a regular basis, and often Mom or Dad will photograph the visitors and share the pictures with Zach. This leads to tracking animal footprints, looking for animal homes, and reading up in Mom's vast library of northeastern animal books.
Before Zach became familiar with which animal went with which track and the meaning of the word "scat," he had a brief encounter that has stayed with me for years. Dad and I were outside with the boys, who were around 4 and 5 years old at the time; we were chatting up by the porch while the boys played in the front yard, which is perfect for biking, ball playing and lots of other activities, although by this point Zach obvious interest in all things animal had become apparent. We stopped chatting long enough to notice that Zach had bent down and was looking at something  on the ground, so Dad started heading towards him and I followed. Soon Zach had this new discovery in hand and was heading towards us to show it off.
"Look, Grandpa!" he beamed, holding out his chubby little hand. "Magic beans!" As soon as dad starting laughing I started running, and at the same time we chorused ,"Zach, PUT THAT DOWN!"
"But look-" he protested.
Firmly I stood my ground and told him once more to put down the magic beans; I'm actually quite proud of myself as I look back on the episode, knowing I must have wanted to scream or run my son inside for a bleach bath.
"You may not play with those. That's fox poop."