Oh, I'll talk to them for an hour.
Tied up a scammer for more than 2 hours once because I couldn't physically locate him -- but as long as he stayed on the line with me, he wasn't scamming anyone else. Wish I'd started trying to get him to front me the money for his scam sooner, because I think I almost had him... (I miss the evil grin emoji...)
Had another woman come in one day. She very carefully set her cell phone down in the vestibule, and came in, asking to speak with an officer. She had a guy on the phone who was threatening to arrest her husband if he didn't pay... Yeah, right. Not how it works. So she brings the phone to the station, with the guy on the line. I tried to string him along for a bit without success, and finally IDed myself. He maintained he was a federal agent, said it was going to be my fault the guy was going to get arrested... Heck, I even offered to hook the guy myself, if he'd sent the warrant. Funny... nobody ever arrested that guy. :shrug: