the first time she has cleaned it she has managed to close to ruin it,
Arrrrgh! Pet hate.
Frying pans aren't exactly the most technologically advanced item in the world yet so many people seem basically incapable of using them properly.
Really does my head in when I take a pan out of the cupboard to find it coated in bits of baked-on egg. (Crime 1: getting egg stuck to it during cooking, compounded by Crime 2: putting it in the dishwasher without scrubbing the bits of egg off first, followed by Crime 3: putting it away in that state for someone else, ie me, to deal with later.)
I love my Le Creuset omelette pans. I wish others loved them as much as I do, then they might get treated with a bit more respect.