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The following is from
<a href="http://revach.net/article.php?id=3104" eudora="autourl">
http://revach.net/article.php?id=3104</a> <br><br>
<font size=3>Rav Menashe Klein: Yichud In An Elevator?<br><br>
Someone asked Rav Menashe Klein (Mishneh Halachos 4:187) a question as
follows. Obviously, says the questioner, if a woman comes into an
elevator that you are in, you must leave because of the issur of
Yichud. But what about if there is a closed circuit video system in
the elevator, is it then permissible to stay?<br><br>
Rav Menashe Klein says that it is not so obvious that there is yichud in
an elevator. In fact he says there is no yichud in a modern
elevator. The reason is that there is no yichudin a room or house
that is opened to a public area because anyone can come in at any time,
even if a surprise entry in very unlikely to occur as in most
scenarios. Certainly in an elevator that can stop at any floor
without warning, there is no issur of yichud. <br><br>
Although no one can enter when the elevator is between floors, Rav Klein
says that there is not enough time for yichud, as the Shiur for Yichud is
the time it takes to roast an egg. Furthermore, he says that even
according to the opinion that Chatzi Shiur (less than the shiur) is assur
Min HaTorah, in the case of yichud it is permissible. The reason is
that Yichud is forbidden because of what it can lead to, and in less than
the shiur it cannot lead to anything.<br>
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