When you get cleared for start and then when requesting taxi get told to shut down again due to VIP movement.
On asking how long the delay is, get told to standby and shut down, trying to explain you are unable to shut down and sit on batteries indefinately waiting to be told how long the delay is. NO response as the tower does not understand anything other than standard RT phraseology
When requesting the length of the delay again get told "you shut down and SHUT UP now"