If I don't recognize the caller, I don't answer the phone. My parents on the other hand, love answering the scam calls and having fun with them. "We need access to your computer." "I don't have a computer, I go to the library and use their computer." "Then can we access that?" They do have a computer, that's just the line they use on the scammers.
Anyway, that ended up biting them in the ass one time when an Amazon delivery driver called to say he'd be dropping of their order. Unfortunately, he slipped up, it was around 4 pm and he said he'd be by "between 5 and 6 am." This combined with the fact he had an Indian accent prompted my mother to scream "you're an obvious scammer" and hung up. Thing is, she really was expecting something from Amazon due that day, and when it still hadn't arrived the next day, she contacted me to see if I could figure out what was going on (my parents are dreadfully ignorant about computers, and I was the one who put the order in for them anyway." When I looked at the tracking information, there was a note there that said "delivery cancelled by request of recipient" and the time of the update corresponded with the phone call from the delivery driver." My mother's defense "someone should teach them the difference between am and pm"
The parcel did arrive two days later.