Prestwick has one of the longest runways in the UK, it also has two fling clubs so on any given day there can be anything from a micro light to an Antonov or Galaxy arriving or departing. As I was taxing out there was a C150 had just taxied out and a 747F had come in behind it.
Atc: Cessna g-xxxx cleared for take off
C150:cleared for take off
Atc: 747F after departing C150 line up an wait, caution wake turbulence :-D