WATCH: Professor Plays Cruel Prank On Chemistry Students (YOUTUBE VIDEO)

If you're a mature student who could pass off as a science professor then you may as well take advantage of it.

Which is exactly what this mature chemistry student did on the first day back.

SEE ALSO: Nottingham Student Smashes Head Through Table, And Is Actually Quite Funny

Although things do get a tad awkward when the real Professor Hafensteiner shows up...