Group zero called well at CUN on Wednesday evening - a nice loooong gap between that and group 1*

*Some credit must go to the Captain who strode purposefully up the jet bridge to stop everyone from boarding just after the two group zero passengers had their boarding passes scanned. The aircraft arrived an hour early on the outbound, had no ground a/c connected while it was parked and the APU on the aircraft was INOP - it was 39C in the cabin as we started the taxi to the runway.