Toe curling...

The sentiment contained herein is an admirable, albeit obvious, one. I shudder, however, to think how many teachers' CPD courses will be including this clip over the next few months and cringe further to think how clever and innovative so many dark-ages professionals will think it...I can almost see the self-satisfied-aren't-I-clever? look on the face of the person delivering the session.

Ach well. The firewall gag's a good 'un...