the question you've got to ask yourself is this......
You've got certain qualifcations to become a manager, so why not use those and get a decent job elsewhere.
Manager position's become avalible very rarely and usually are chosen from within the company
Is being a ramp agent some-thing you reallly want to do, earning ok 'ish money for some-thing labourer's on a building site can earn nearly twice as much (or what i seem to get the impression)
Would you like to get back pain's as a result of lifting a small hand bag that weighs a tonne?