Rabbi Aryeh Lebowitz

If ever circumstances dictated that a short-sleeved shirt would not be disrespectful, so then maybe an echnami.

That is subject to change as well.

It's interesting that Rav Avadia in his tshuva about short sleeves, for davening, he does connect these two issues of the parts of the body that are considered dirty and sweaty and gross and davening with those parts of the body exposed.

And that's why Rav Avadya writes that he thinks that you can wear a short-sleeved shirt as long as the sleeves go down to the elbow.

You just can't wear a short-sleeved shirt that goes all the way up.

Now the style is that the short-sleeved shirts are much shorter sleeves.

So even Rav Avadya would have a problem with it.

But Rav Avadya quotes the Chuvos Yaskil Avdi, Chelek Zayin, where he says that that even if it covers until the elbow, he can't be a shluch tzibur.

that it's a lack of respect for the tzibur that you're going to go and you're going to represent them with your arms totally exposed that it's not the way to stand in front of a gedolem with a short sleeve shirt

And therefore you wear a jacket over it or something, but you should wear sleeves.

So Enoch Lami is my answer to this question, that it is dependent.

It is dependent on societal norms.

I just reject the premise that societal norms dictate that short sleeves are totally fine when you're trying to show respect for somebody.

Question number five.

If one listens to Rabbi Leibowitz's shiurim while walking in public areas where one might momentarily see erva, which is unavoidable and unintentional, what is the proper halachic approach?

Is it sufficient to look downward and continue walking?

Does the same halacha apply when saying brachos or when engaging in more formal learning?

So,

Halacha is you're not allowed to say brachos or learn Torah when Erva is present, unless there is a barrier.

But you are allowed to listen to Torah, meaning listening to Torah is considered hearing of the Torah as opposed to learning Torah.