Not a student FI experience but myself and a mate returing from a business trip into a Controlled International Airport, we had just landed and I was about to shut down when I got the following radio call from the tower.
Tower "xyz cleard to land number one"
Me "Tower xyz has landed 5 mins ago and is about to shut down"
Tower "oh..... Disregard"
I guess it was a slow day on top of the stick.