Refugee claims are actually decided by the Immigration and Refugee Board of Canada, but CIC screens the claims to decide whether or not they legitimate (though these decisions can be appealed). Every case is different. It's difficult to give examples and say that your case would or would not have the same result as any example I would give. It's much better for you to give me a sense of your situation and maybe we can provide you with some idea of whether or not you have a chance.