Hi Jillian, you can always say, 'I'd like to help you, but it is not possible at the moment because I have to finish my project etc'. Maybe XXXX can help you'.

its defend on the situation..if you ask me not to eat the whole day why should i follow you ofcourse i will eat.sometimes its not bad to break what other people want you to do you have to think first what could be the result for you or to other..... cowboy...

if you don't wna't to do a thing for the reason that you're not capable of doing it, then you can always refuse and tell the possibilities that may take place if you continue doing it... on the other hand, if you simply don't like to doing what is asked from you to do, state your reason why or offer other alternatives to do... this is what exactly the way I'm handling this kind of situation. :)

to some degree,i agree with Lucia.but i think you can also rufuse or decline it directly,by doing so,you can save much time for yourself and others.

If it is my boss ask me to do something about my job, I will do that, that's my work. If my friend ask me to do something I don't want to, I would say"Sorry, I don't want to do that". In my opinion, a real friend would respect me and my decision