Starting the standard clearing turn out of Gib, on a call out for a very sick little girl who had to get to G.O.S. hospital, to be told to contact Spanish ATC who cleared us present position direct LHR. Laughing like hell at the Speedbird callsign, who, when told to take up the hold at 'the park' as we were cleared in direct from the coast of France, questioned why? The immediate offer from London of a diversion to Luton was met with a long silence and muted acknowledgment of his hold timings. Watching every man and his dog do their best to get her into the ambulance as quickly as possible and holding up everything else on the pan to do so. Being number 28 to taxi as we dropped the hospital callsign.... A proper nights work.