Alv. But,
Fair Mask, didst never change thy mind before?
Ser. Perhaps once—to such purpose that that once
Forbids all other.
Juan. Serafina, the Mask
Has askt your hand to dance. On these occasions
You must permit him, whether known or not.
Unknown, the usage of the time allows;
If known, ’twere more discourteous to refuse.
Ser. My lord, ’twas chiefly upon your account