Doing iddat in one's own home

Q: A poor woman who works as a full-time caretaker of another woman had the death of her husband. In this situation, is it permissible to do iddat in the house where she works since she is the only one to support her children and if she goes to her own home for iddat, she will not have any source of income?

Some people are willing to help her financially for the period of iddat to do iddat at her own home. What will be the best in these circumstances? 

Interest transaction

Q: I have question about sood. In my town people are taking Rs.45,000 for a month and giving the Rs.60,000 or Motor Cycle CD-70 having price of Rs.63,000 after one month, so choice depends upon people either they want Rupees or Bike. So I want to know that whether it is sood or not. Some people are saying that taking rupees is sood but bike is not sood. Please guide me.

Saying an ambiguous word of talaaq while arguing

Q: I understand that there has to be a niyyah when one says a phrase of kinaya talaaq. I wondered that if one is arguing, and one gets a feeling like wanting to divorce or a feeling like "come on do it now (leave her) and then says a kinaya statement like "go to your father", all happening in seconds, is that a clear intention that is necessarry? But if the person asks himself a few moments later did you want to definetly divorce her now by that, the answer is no. What do i do now as i dont know whether it was an intention that counted or not?