Have you heard of UD Management Group, or think it's a scam?

Two young men came to my door. To be quite honest, they looked like hoodlums wearing business casual.

They explained that they worked for UD Management group (website is www.udmanagementgroup.com) They said that it’s a company which helps rehabilitate people like them, by allowing them to practice eye contact, professional dress, speaking, etc. by going door to door and selling magazines.

Anyone have experience with this? If I gave them money, would I receive the subscription at some point? Or would I just lose the $? Or were they scoping out my area?

I feel bad to be skeptical, but I also feel smart by being so . . . any info would help.