On 57 Sqn. 1960 Victor 1.1A it was part of the AEO's pre taxy checks to remove and stow the pilots ejector seat pins.A certain AEO who shall remain nameless, modified the checklist to read "Seat Pins removed and stowed.Padlocks in,keys kept at the back" Caused many a visiting pilot being shown the mysteries of flight refuelling,to go crinkle chip!!! I think he was joking,but you never know!!!