The 10m exclusion rule is a dog's breakfast this year (no doubt) - yet it doesn't surprise me that there were so many last night. Sydney and Hawthorn of two of the biggest mark encroaching teams in the AwFL, they always press towards the kicker and I'm pleased that they got hammered last night. It has become so habitual with them they simply couldn't get it right - penalty after penalty and they kept pressing for another. Whilst umpiring isn't an exact science, everyone working on a building site knows what 10m is. 10m is 10m - it's not like some abstract painting, a theological metaphor, a weird spot on Uranus (or something).
In my view, if a bricklayer understands what 10m is, so should a football player.