So Fly by Wife,
when you take off and think it's all going well, but the engine stops, and you smash through the far set of lights in the ensuing forced landing, and the said 'rebar' penetrates your cockpit space and goes straight through you (i've seen it happen with cars..), will you be so smug then?
It's a genuine concern, and one which the Alderney powers that be should address if the lights are on airport property, just in case there is an accident and this thread is produced in court! Duty of care and all that.......