One American, one Japanese and Banta Singh were sitting naked in the sauna.
Suddenly there was a beeping sound.
The American pressed his arm and the beep stopped. The others looked at him questioningly.
"That was my pager," he said. "I have a microchip under the skin of my arm."
A few minutes later a phone rang. The Japanese fellow lifted his palm to his ear and spoke briefly into it.
When he finished he explained, "That was mobile phone. I have a microchip in my hand."
Banta Singh felt decidedly low-tech. So as not to be outdone, he decided he had to do something just as impressive.
He stepped out of the sauna and went to the toilet. He returned with a piece of toilet paper hanging from his backside.
The others raised their eyebrows...!
"Will you look at that," said Banta Singh. "I'm getting a fax!"