"Secondly, to whom do these professional people owe this duty? I will take accountants, but the same reasoning applies to the others. They owe the duty, of course, to their employer or client and also I think to any third person to whom they themselves show the accounts, or to whom they know their employer is going to show the accounts, so as to induce him to invest money or take some other action on them. But I do not think the duty can be extended still further so as to include strangers of whom they have heard nothing and to whom their employer without their knowledge may choose to show their accounts. Once the accountants have handed their accounts to their employer they are not, as a rule, responsible for what he does with them without their knowledge or consent. ... The test of proximity in these cases is: did the accountants know that the accounts were required for submission to the plaintiff and use by him?"