Is this news flash telling us that people who assemble in large groups always leave a fucking mess? Water is wet.
Or is this telling us that hippies* leave bigger messes than normal? We know.
Or.......is it the fault of the devil weed that trash was left behind, jazz music was played, and some white women were seen dancing with negroes?
* I voted for legalization, but not gonna attend a 420 rally. In before anyone who supports decriminalization is called a "doper".