No longer answer our home phone if we don't recognize who is calling. Popular scams people have tried in the past: 1) We owe money to some hospital none of us have been associated with, 2) Someone cites legal mumbo/jumbo saying we are going to be arrested or similar nonsense if we don't pay them a fine/fee, 3) We owe a store money for a special order item and they mumble the name of the person who supposedly ordered this item using our phone number or 4) The IRS is calling demanding money for back taxes (IRS NEVER calls as the first point of contact, they send a letter). Apparently that scam is so common you can ever read about it on the official IRS website. A few others would start by saying 'this call is being recorded'............then we just hang up. NO ONE calling us who is running a legit business ever needs to start the conversation by telling us we are being 'recorded'.
Various others were from someone calling from what sounded like one of those 'boiler room' operations and speaks very poor English. We would just hang up before they could ramble off with whatever scam they are trying to pull.
With caller ID on our home phone, we now block numbers of those we don't know who repeatedly call and never leave a message. Legit businesses will always leave a message, scammers will NOT...........LOL.