no, i don't want to answer this question.
oh well, i guess i will answer.
sometimes i can say no, sometimes not. it really depends on who i'm talking to. for example, if its a friend or classmate, i can say it easily. so if someone asks me for help and i have the time to do it, i'll say yes, but if not, i'll clearly tell them i can't. and I thank Allah for the ability, because i see that some ppl have a hard time to say no.
the same is the case with standing up for your rights. i can do it with non-family memebrs.
as for family members, i think saying no is harder because you don't want to hurt anyone's feelings, becuase you are brought up to feel that it will hurt their feelings etc. Also, if you are talking to your parents, then its important islamically also to obey them. however, you need to draw the line sometimes. sometimes you need to explain to parents / sibs that what you are doing is right and what they are saying is wrong, especially when it is related to Islam.
so it's important to learn to say no when it is islamically right for you to do it. you need to know exactly when it is right and when it isn't for you to say no, and then do it when it is right. i hope i made myself clear