Maximum Security

"Hello, I'm with Top Notch Security Systems. I'll be sending a technician to fix your keypad entry today and I just need to get the entry code from you."
Long pause.
"No, I won't give you the code over the phone but I'd be happy to tell your technician when he gets here."
This is not what he wanted to hear but I dazzled him with my logic. Call me paranoid but it doesn't take a genius to read the note our helpful leader posted on the back door- "Keypad does not work. Top Notch Security will come by today to fix it."