The problem with stringing them along is that once you have emailed them back, they then know you received the email and it's a legitimate address. They can sell this address to other companies. Secondly, unless you have a really great virus program, you may make them angry, and they might send you ugly virus. I actually don't think you waste as much time as they waste yours, because most have prewritten responses to various situations. Jodi did play someone along, but it was a little different, because this was a member of Yorkietalk, and she wanted to be sure he was a scammer. Seriously there are thousands of different companies that do this, and unless you can get the police involved where they actually catch the guy as he goes to pick up the money, I think it's a huge waste of your time. That's the best "mother" advice I have, so I leave it up to you to decide.