members of the religious society of friends have occasionally expressed frustration at being confused with the quaker oats representation. in recent years, friends have twice protested the quaker name being used for advertising campaigns seen as promoting violence. in 1990, some quakers started a letter-writing campaign after a quaker oats advertisement depicted popeye as a "quakerman" who used violence against aliens, sharks, and bluto. later that decade, more letters were sparked by power rangers toys included in cap'n crunch cereal.