The next important fact is that the respondent was fully aware when it made the contract with the appellant that Doris Parkinson had lodged her caveat and had done so after the expiry of the time fixed in the notice to complete which the respondent claimed had been given to her. This provides one important ground of distinction between the present case and that of Woolcott v. Peggie [2] , and on appeal to the Privy Council [3] . The learned primary judge recognized the principle that the freedom of a vendor to rely upon such a clause may be affected by his conduct before and at the time of entry into the contract. But he observed that the respondent had consistently maintained the validity of the notice of rescission which it claimed to have given to Doris Parkinson. In my respectful opinion that has little bearing upon the question which has to be resolved. It may be that a vendor who enters into a contract without disclosing an earlier contract can be considered less reckless if he believes that the earlier contract has been validly rescinded than he would be considered if he believed it to be still in force. But whatever his belief may be in that regard, it remains no less true, in my opinion, that if he enters into a contract under which it is his responsibility to carry out the task, whether it turns out to be easy or difficult, of getting rid of a caveat which has already been lodged, his knowing acceptance of that obligation has an important bearing upon the reasonableness of his subsequent attempt to use cl. 14 to rid himself of it. The learned judge observed also that the caveat represented what might be described as a blot on the respondent's title, but he said it was "a blot that was there for all to see". But, in my opinion, the respondent can obtain no assistance from the fact that a search of the title would reveal the existence of the caveat. It is well settled that the conduct of a vendor may disentitle him to exercise the power of rescission although he is not guilty of fraud or dishonesty. It may disentitle him, although there is no ground for suggesting that he hoped to be able to pass off a title having a defect which would not be discovered before completion. It should be observed also that the fact that the caveat was there to be seen upon a search of the title was not a fact which placed any responsibility or obligation upon the appellant. It has been said that a caveat is not a blot on the title: see Thomson v. Richardson [1] . The respondent's title was defective only if Doris Parkinson had a valid and subsisting equitable interest in the land. If she did not the respondent's title was entirely good. But whilst the caveat remained that title could not be effectively transferred to the appellant. Webb J. said in Taylor v. Land Mortgage Bank of Victoria [2] , that a caveat throws a cloud on the title. Whether or not that is a useful metaphor, the importance of a caveat for present purposes is, as Webb J. there observed, that "it forms, until removed, an effectual obstacle to making a good title to (a purchaser)". It forms an obstacle to making a title, in the sense that it prevents registration of a transfer and registration is necessary to vest the estate in the land in the purchaser. If the vendor carries out his obligation to remove the caveat, as the purchaser is entitled to expect, there is no difficulty. But if the purchaser waives that requirement, what he obtains upon completion of the contract is something very much less than that which he agreed to buy.