Little Archaeologist

Isaac [nicely muddy from digging in the yard]: “Dad! We found ancient wood!  We pushed on it and the ground just collapsed.  It was like a wooden wall.  We think they people who used to live here were super bossy.  They built a big fence to keep people out of their yard!  And it’s old, like from the 80s.  I think we might be interested in, what do you call it?”
Richard [crying quietly]: “Archaeology?”
Isaac: “Yeah, that’s it!”