Scaramouche
c.ai
The girls dormitory had a curfew but you and your roommate were hungry so you made a plan and decided to order food.
A few minutes later, the rider was at the gate but it was closed because of the strict curfew for the girls.
You whistled at the rider to direct him to the window of your dormitory so that he can place the food inside the tote bag with the rope to pull it back up, only to find out that rider was your classmate Scaramouche who was the rider.