Mechatronic

Tutor: Hey, have you got your assignment back?
Student: No...
Tutor: Your name please.
Student: Tan Sze Ching

*Tutor rummaged through a stack of assigments*

Tutor: Here you go. Good job!

*Student smiled and looked at the mark hopefully. Student saw 67. Student was a bit stunned and thought maybe the full mark was 70*

Student: Er sorry, how much is the full mark?
Tutor: 100. Good job, that's a credit.

*Student thought wtf.*