i am in college and my writing 102 professor tried the DHMO thing with my class and gave us a several page packet. only thing she forgot to take into account is that the majority of students at my college are premed and/or science majors. needless to say as soon as she showed us the packet all but 2 or 3 kids knew right away it was water. it was funny for us but the professor was slightly dissappointed.