. >> reporter: when you walk into marty freeman's class, first impressions don't necessarily know everything. >> if students want to know about me, come ask me, contact me. >> reporter: he grew storied of students use ratemyprofessor.com, because it's stupid. he began to review himself. some are favorable, but most are terrible. >> as long as they allow anyone to post whatever they want, i will do that. >> reporter: he has said things like laziest professor i have ever seen, and don't take him. you will waste your time. notice the misspelling on purpose. one semester he posted a review every other class period. >> i wanted it to see how low i could get my rating. >> reporter: his goal is to get people to know each other on personal levels, not through the computer screen. >> if you want to know about an instructor, service, you talk to the service, the professor, or the contractor. >> reporter: he says his students have a hard time with this because of how often they use a computer. freeman is leaving at after the semester, but that's not slowing him down. his last negative review was just w