They prey on you at night as you're sitting down to dinner. They get you at work, hoping that staring at a computer all day will make you braindead enough to give into their ploys. They are fraudulent telemarketers -- scam artists who aim to suck up as much of your cash as possible. Together with home improvement/construction and mail marketing deception, phone solicitation rounds out the list as the most common type of fraud, according to consumer watchdogs the National Association of Consumer Agency Administrators (NACAA) and Consumer Federation of America (CFA). The groups are urging people to take measures to prevent being on the wrong end of a bad deal.