Early Hackers Used Whistles From Cap’n Crunch Cereal Boxes

Ah, the Phone Phreak days. That was a cool time for something i never partook in. Whistling to join a chat room, those days are gone forever.

reminds me of this scene

Huh, that's odd. I brought this up in a conversation yesterday, strange coincidence.

I couldn't remember which cereal it was though.