"It might be the metal of the balcony that's causing a communication barrier", Mark said to the two spooks sagely. He stepped out onto the balcony and as he did, he flipped a switch on a small box in his pocket.
"Is it connecting?" called Mark from outside.
"No it's bloody not!" one spook said to the other. "Come back into the room."
Mark came back into the room and surreptitiously flipped the switch back. His microchip inside him started communicating again.
"Little fucking smartarse!" said one spook to the other quietly.
Mark's next experiment would be for longer periods.