> personally do not answer any calls from numbers not on my contact list. I do. Then take the time to get an actual human on the phone. Then I verbally abuse

> personally do not answer any calls from numbers not on my contact list. I do. Then take the time to get an actual human on the phone. Then I verbally abuse them until they hang up. It's not effective in stopping them, but while I'm spewing vulgar stuff at them, they're not trying to rip anyone else off.