"No way, the commander actually realized Jon might using a bug?"
"It's a little sudden. I didn't notice anything at first, but he suddenly thought of a bug?"
"I seriously suspect that someone tipped them off. Quick, which of you tipped them off?"
"What the f*ck tipped them off? There's a rule in this drill. The robbers and the police can't watch the live broadcast. How are we supposed to tell the secret?"
"Actually, there's a reason why the commander was able to suspect the bug. That's because during the last drill, Jon also used the bug."
"Good god, the previous commander used his failure to expose Jon's method for the later commander. This is what we called the predecessor planted the tree, letting the next generation rest in shades."
