A College Student Shared His Professor's Response To His Email And LOL

19-year-old sophomore Kade Walker, who's studying political science at South Dakota State University, recently joked on Twitter about an email he received from one of his professors, David Wiltse.

"High school: College is no joke, your instructors are very serious and you have to always be proffesional (sic) and respectful. College:," Walker captioned a now-viral photo of his email exchange with Wiltse.

Source: BuzzFeed