Jimmy picked up the shell casings from the ground, looked at the small patch of the steel plate in the middle, returned to the villa, found a bag and a shovel, came back and scooped the dirt directly into the bag, carrying the bag and shovel, along with a few steel plates, back to the villa.
Harlington watched Jimmy pacing back and forth, grabbing tools, having just heard a few gunshots, feeling a bit puzzled, but didn't interrupt Jimmy's task, noticing Jimmy put the bag in the trunk of his car, returned the tools to the tool room, and then asked, "Jimmy, how's it going?"
Jimmy: "Oh, it's nothing, just running a test, let's see what happens tonight."
Harlington: "I don't understand, were you dealing with something just now?"
Jimmy: "Uncle Harlington, it's not the right time yet, let's see tonight, if nothing unexpected happens, I can tell you tomorrow."
Harlington nodded, "Alright."