You know what the problem with modern society is? You know why everything seems to be going all crazy these days? It's the 5,000-year-old tradition of using a medium that can be exchanged for goods and services in lieu of a straight barter system. That and non-broken windows.

Luckily, some very intelligent people in London — where the G-20 summit is being held this week — are taking care of all that right now…

At least 4,000 anarchists, anti-capitalists, environmentalists and others jammed into London's financial district for what they called "Financial Fool's Day." The protests were called ahead of Thursday's summit of world leaders, who hope to take concrete steps to resolve the global financial crisis that has lashed nations and workers worldwide…

Some protesters spray-painted the side of the RBS building with the phrases "class war" and "thieves." Others pushed against columns of riot police who swatted them away with batons.

Demonstrators shouted "Abolish Money!" and clogged streets in the area known as "The City" even as Prime Minister Gordon Brown and President Barack Obama held a news conference elsewhere in the British capital.

No word yet on whether or not world leaders will take these helpful people's sage advice to return to an economy based upon lentils and goats.

But hopes are high.