Courtney - a very kind offer old chap, thank you.
GR4techie - I believe that your "paid to work weekends" is not entirely correct. Most in the RAF get 15% X-factor in their pay to allow for the embuggerance of being told to work the odd weekend, however, I do not. Furthermore if everyone was told to work 7 days a week for an extended period then I suspect within 18-24 months there would not be an Armed Forces left - not a strike, but everyone would PVR and leave! Furthermore, most of us did not join the military to cover for Fire Services, G4S and other such revent disruptions. So a call to arms for armed operations over extended periods is very different to filling capability gaps for others' shortfalls.
LJ