Quick query - our 2 month-old panasonic's door doesn't seem to close evenly. I don't even think the hinges are straight. It clicks into place firmly but bottom of the door beside the hinge there appears to be a small gap. How critical (if at all) is this? Do all microwaves leak to some extent? Would I know all about it if I was receiving 900watts on my hands/arms/face?

Its a Panasonic NN-ST477S