We work in the private sector, and are thus to be feared on account of buying into capitalism.

Public sector workers are, apparently, providing a valuable altruistic public service and evidence of incompetence, laziness or general twattery can be ascribed to Tory smear and 'completely isolated' individualistic wanker.

Joking aside, testing is vital because it's the only sensible 'track' you have on how things are progressing. You can't just let them paint all day, much as that might be a feasible strategy in a fantasyland where everyone in teaching is a top, TOP lad.