

Personnally, I started never answering to any unknown number (masked caller id or even just numbers not in my contacts). When it’s legit, caller leave a message on voicemail. Scammer, direct marketing,… never leave messages. Ok I still get the call and have to ignore or reject it (but it’s better than answering and having a commercial starting his speech).
Yep was one of these kids… From the very same period, removing 10base2 BNC terminators was also a fun thing to do. Both had the effect to infuriate the computer science teacher…
Thanks for the collection of all this…
(later it was the deadly loop on network hubs and tcpkill… all this is impossible now)