Just steal crap from the fleet bank - everyone else does it. You'll get kicked soon enough.
This, of course, assumes you have permission to take anything from the Fleet Bank in the first place. And if you do, why is it stealing? Is the stuff in the fleet bank only for the fleet leaders to use? Can fleet members not utilize the supplies of their own frelling fleet?
Yeah, I've had some issues with my fleet recently. I guess I need to create my own. Everyone is so frelling bossy about everything.