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Professor Jason Hansen was teaching students at Brigham Young University in Utah about kidney function when he decided to bring in some secondary school teaching tactics and invite a student to take part in a practical lesson. Professor Hansen, Fox 13 reported, offered a student some extra credit on the condition that she slug back a little vial filled with his urine. Though the student was provided with a trash can in case she got hit with some nausea, she aced the extra credit assignment. 

Intended word play with "vile?"
Intended word play with "vile?"