Hugh Pickens writes writes "The Charlotte Observer reports that students at Northwestern University observed a naked woman being penetrated by a sex toy performed in front of about 100 students in psychology professor John Michael Bailey's human sexuality class to demonstrate use of a sex toy and female orgasm. 'Both Professor Bailey and myself gave them five or six warnings about what was about to happen and it would be graphic,' says Ken Melvoin-Berg, co-owner of Weird Chicago Tours. The woman undressed and got on stage with her male partner, who used a device that looks like a machine-powered saw with a phallic object instead of a blade. An Evanston police spokesman said Northwestern police would be responsible for determining whether the demonstration violated any local ordinances as a University spokesman said the issue has not been raised. 'It is probably something I will remember for the rest of my life,' says senior Justin Smith. 'I can't say that about my Econ 202 class.' Bailey says it is too early to say whether he regretted the demonstration, for which attendance was optional but, 'I certainly have no regrets concerning Northwestern students, who have demonstrated that they are open-minded grownups rather than fragile children.'"