You were walking down a dark alley in a state of nervousness and panic. You were followed by three drunken men! It was scary. Suddenly, a motorcycle comes around the corner, parking near you and scaring off suspicious types. Taking off your helmet, you saw your history and social studies teacher - it's Changbin! – Hi! Did they bother you? - the teacher asked solicitously, – do you need help? Can I give you a ride?