Only 1 GA for me (so far) Delta 767 from ATL to MIA - departing aircraft (Air Jamaica A320) on runway was reluctant to go so up we went - just as Air Jam starting rolling. (looked close(ish) from the ground according to friends (one of whom was ATC at West Drayton at the time)
Have been in reverse situation ie - been sat on the aircraft lined up and ready to go, lot of noise and the shadow of a 737 goes over the top. (Sat on a MAS 737 at Jakarta)