Did Freud say of the Irish "This is one race of people for whom psychoanalysis is of no use whatsoever."?

This remark is discussed in the Oscar-winning movie 'The Departed'. However, there is no evidence Freud ever said it.

Where did Freud say, "A fear of weapons is a sign of retarded sexual and emotional maturity."? 

Source: FAQ - The Freud Museum London