One of the reasons why I do it ( baring the obvious $$$ to pay the green fees ) is that the job offers that element of surprise......you just never know what the operation may bring or what rules & regulations the suits are going to think of this week.
For us, no two days are the same & that's what keeps us on our toes.
Ficton - You are OMDBs No1 Planespotter
Cheers 3 Off The Tee