 Due to Rumkowski's harsh treatment, and stern, arrogant personality, the Jews began to blame him for their predicament, and unleashed their frustration on him instead of the Germans, who were beyond their reach.The most significant display of this frustration and resistance was a series of strikes and demonstrations between August 1940 and spring of 1941.Led by activists and leftist parties against Rumkowski, the workers abandoned their stations and went to the streets handing out fliers