Or you could take the other approach and string them along with false info.
There was a guy online years ago who called himself the "Ebola Monkey Man" and had a whole web site where he documented how well he did this with many scammers at the time...some of the stupid stuff he got them to believe or do because they thought they were going to make money off of him was great. I rarely get scam calls or emails these days, but I think the next time I do I'll try this.