This is what a retiree (Killian) did after losing some money to scammers. As you might know, once you bite a bait earlier, the scammers will keep coming back asking for more. What Killian did was much less “harmless” than the scam baiters at 419eater, but he did waste the scammers time.

“During one recent
swindle effort, the caller said Killian had won a prize and that he’d
have to settle the tax issue first by sending money to a law firm in
New York.

Killian told the caller that he would rush to his bank and get the
money. When they called back a few hours later, Killian mocked them.”