Data takes note of his hesitation. He wishes he knew exactly what it meant, but he realizes that this has been a senstive subject between them of late. Perhaps it would be better not to emphasize it by asking unnecessary questions.

"I have not," he says. He attempts to make his voice sound gentle. "I do not anticipate having any urge to install it in the near future, and it is even less likely that I will choose to indulge such an urge.

"If I did, however, I would ask for your help in doing so."