Hi Alison,
I apologize for causing you offence, it was certainly not my intention. The analogy between bars on doors and windows, and a prison like environment was the only one I could think of at the time.
I had mistakenly assumed the grilles were fitted to stop people getting into the flat, whereas you are informing me that it is to stop children falling out. I stand corrected.
Thank you for the information, I can now cancel my order for window grilles, as I have no small children living with me.
Don