What happens when the 99 percent get kicked out by the cops, only to return later that evening? Mayhem. The Occupy Oakland protest, which is one of the largest in the country, reached a tipping point late Tuesday, as demonstrators trying to reclaim their campgrounds clashed with police. The authorities have reportedly used tear gas and percussion grenades to fight back. Police raided the Oakland movement earlier in the day and arrested 85 because of a lack of “safe and sanitary” conditions. Some reports say that as many as 500 people have been tear gassed. Meanwhile, police in Atlanta have also started evicting protesters.