No offence intended...I genuinely take my hat off to anyone who walks away without bending the aeroplane. It shows good training and current practice..when did I last try a PFL???
The point I was trying to make is that surely a School must constitute a 'congested area' from the CAA Legal Department's point of view....admittedly, I don't know the area at all so this is purely conjecture but can you imagine the flak GA would be taking now if the Rugby team had been playing at the time or worse still, if they'd only made it as far as Class 5's Maths lesson when gravity triumphed!
In the same situation I would probably have picked the same field and I'm not suggesting that I religiously avoid everything made of bricks and mortar but I think many of us single engined pilots take the reliability of our engines for granted. There's a similar thread running somewhere about flying over SE London and in this day and age, when GA has few supporters as it is, if a school field was your only option then you'll need a good lawyer if you cock it up!