There is a very tragic and inappropriate story, which is categorized as an urban legend.
It is said that the freshman class of a certain undergraduate course were in the biology laboratory examining saliva samples under the microscope when at a certain point the professor was called to identify what the small beings were that were moving insistently.
- Sperm! where did you get that?
the end
RE: Qurator's Mischievous Mondays | Urban Legends