"Even though the person who induces a breach dose not know the precise terms of the contract he is acting unlawfully if he says to himself "whether it is breach of contract or not. I care not". If he induces a breach of contract recklessly, careless whether it is a breach or not - turning a blind eye to it - he is liable for interfering with contract relations".
See also Daily Mirror Newspapers, Ltd. V. Gardner and others (1968) 2 Q.D. 762; 2 All E.R. 361.
As an example of the latter case, "turning a blind eye" as to the very existence of the contract, I will turn to the Torquay judgment already mentioned above, where Lord Dunning says, albeit incidentally, that "the person must know of the contract or, at any rate, turn a blind eye to it". In any event, in my opinion, it is sufficient that the defendant knew facts from which a reasonable person would have deduced the existence of a contract, or at least the possibility of its fulfillment, but that he preferred to close his eyes, that is, not to know it, and therefore he refrained from drawing the necessary conclusion from the facts and asking the parties concerned whether there was a contract between them. In our case, Mr. Aryeh Levin testified that during the period of his work as an engineer for Ben Shahar in the construction of the boat, it was initially thought that the work would be completed on time, but later technical difficulties were discovered, mainly because no ship was found to transport the boat. At the end of March, or the beginning of April 1971, when it became clear that they would not meet the timetable, Ben Shahar asked him to receive official permission from the appellant to remain in the leased property beyond April 30. The witness even prepared, at Ben Shahar's request, a document for the appellant's signature. Mr. Levin said (at p. 11 of the particular) that the appellant made his certification conditional on the receipt of rent from Ben Shahar, and added that "to me personally, this demand seemed justified. If you take a rented property, you have to pay for it..." Later (on page 12) he said: "The letter was written by Mr. Ben Shachar in connection with Mr. Hassid."