The opinion of the court was delivered by

This was an action to set aside a deed to a farm on the ground thát at the time of its execution the plaintiff was mentally incompetent, and that the deed was procured through the undue influence of the grantee. The defendant, William L. Golder, prevailed.

The errors assigned are that the judgment was contrary to the evidence,' and that the testimony of the grantee should not have been admitted.

*487Touching the first of. these propositions, it cannot he said that the judgment was not sustained by the evidence. Most of the evidence was in the form of depositions, and a considerable part of it not only failed to show mental incompetency on the part of the grantor and failed to show undue influence on the part of the grantee, but did tend to show that the grantor acted intelligently, independently, and without constraint or influence of any sort on the part of the grantee — except what might be inferred from his kindness in opening his home to her in the loneliness and growing physical infirmities of the last few months of her life. Even applying the rule that one who receives a large gift from an elderly arid feeble person; and who stands in an intimate or fiduciary relation to such person, must shoulder the burden of showing that the gift was voluntary and without coristraint or undue influence, and that the donor of the gift was of sound mind and knew and understood what she was about, a considerable portion of the evidence met such requirements. All that was adduced to the contrary —giving it the largest credence — amounted to little more than to show that during the last year or two of the grantor’s life she became negligent in her attire, and that she was inclined to be forgetful and frequently repeated herself, in conversations.

On the second ground of error, that the defendant grantee’s evidence should not have been admitted, his testimony was in the form of a deposition taken by the plaintiifs and filed by them; and, of course, the defendant could introduce it, although the plaintiffs refrained from using it. (Rucker v. Reid, 36 Kan. 468, 13 Pac. 741; Hale & Bro. v. Gibbs, 43 Iowa, 380; Little v. Edwards, 69 Md. 499; Byers v. Orensstein, 42 Minn. 386; 13 Cyc. 979, 980.)

The taking of depositions is not a mere fishing excursion, nor is it authorized for the mere purpose of prying into the defense of an adversary who is disqualified as a witness in his own behalf. When plaintiffs called Golder as their witness and examined him under oath, and filed his deposition in court, they thereby waived all proper objections as to Golder’s competency to give the evidence. (Borgess Inv. Co. v. Vette, 142 Mo. 560; Rice v. Waddill, 168 Mo. 99; Thomas v. Irvin, Adm’r, 90 Tenn. 512.)

Affirmed.