first of all, you are sitting in F, so might I offer you some cheese with that...? Just kidding. I generally do not recline in any seat, with the exceptions of red-eyes and domino-effects when I want to use my (yes slightly oversized) laptop. One problem I have encountered is that occasionally the F seats are a little worn, and do not lock into place in the unreclined position (even when my oversized thigh is nowhere near the little button). The trick is to make sure the FA does not notice this prior to takeoff, as the official policy is to move pax out of such seats (and when F is full, guess where that puts one).