Related Clues:

• Prison inmate
• Shady scheme
• Many an e-mail 'click here' offer
• Contrivance for taking people for a ride
• One doing time
• Offer that's too good to be true, often
• Pull a scam on
• Pro's counterpart
• Bernie Madoff's hedge fund, e.g.
• Grifter
• Pen inhabitant
• Bogus plan
• E-mail from a Nigerian prince, probably
• Trap for a pigeon
• Unbelievable deal?