One day in EHAM/AMS:
Speedbird is on her way to terminal after landing. Then ATC calls:
GND: Speedbird XXX hold position at [...], your gate is still occupied.
A/C: Roger, holding position.
After a while:
A/C: Do you have any idea how long it may take?
GND: They reported to be ready in two minutes.
A/C: Ok, thanks.
GND: But you never know - these are pilot's minutes...