Question

Hello Rabbi,
You previously referred to the statement of the Sages: Rabbi Ilai the Elder said, if a person sees that his urge is overpowering him, let him go to a place where no one knows him, wear black, cover himself in black, and do what his heart desires, but let him not desecrate Heaven’s Name in public.
You wrote that some of the medieval authorities (Rishonim) did not rule this way.
A. Which medieval authorities rejected this saying as Jewish law?
B. I didn’t understand what, in their view, is wrong with this ruling. Do they think the sin should be done in public?
We are talking about a person who “cannot subdue his urge”—he sees that in another moment he is going to sin, and he is unable to stop himself. Don’t considerations of choosing the lesser evil say that at least he should hide himself?
Could you explain, clarify, and elaborate?
C. On another matter: someone who walks or travels on the Sabbath while desecrating the Sabbath, and wants to recite the Traveler’s Prayer—what is the law?
I was thinking of sayings in the Talmud that are somewhat related, like, “This is what people say: the thief, at the mouth of the tunnel, calls out to the Merciful One,” and “If a person stole a se’ah of wheat from his fellow, ground it, baked it, and separated hallah from it, how can he recite a blessing over the commandment of separating hallah? Such a person is not blessing God with this blessing, but blaspheming.”
Of course, distinctions can be made.
 
What do you think?