On tomorrow’s page of Talmud we will read of a very bizarre case:

יבמות נד, א

 אָמַר רַבָּה: נָפַל מִן הַגָּג וְנִתְקַע — חַיָּיב בְּאַרְבָּעָה דְּבָרִים, וּבִיבִמְתּוֹ לֹא קָנָה. בְּנֵזֶק, בְּצַעַר, בְּשֶׁבֶת, בְּרִפּוּי. אֲבָל בּוֹשֶׁת לָא מִיחַיַּיב, דְּאָמַר מָר: אֵין חַיָּיב עַל הַבּוֹשֶׁת עַד שֶׁיִּתְכַּוֵּון

Rabba said: One who fell from a roof and was inserted into a woman due to the force of his fall is liable to pay four of the five types of indemnity that must be paid by one who damaged another, and if she is his yevama he has not acquired her in this manner. He is liable to pay for injury, pain, loss of livelihood, and medical costs. However, he is not liable to pay for the shame he caused her, as the Master said: One is not liable to pay for shame unless he intends to humiliate his victim…

As weird Talmudic cases go, this is among the weirdest. It is entirely impossible, and not least because this would happen. Did the rabbis of the Talmud really believe that such a case could occur? To answer this, let’s consider come other rather implausible cases from across the Babylonian Talmud.

 The AMAZING Shechita Knife

We begin with a fanciful question that is somewhat analogous to tomorrow’s falling Yibbum case. What happens if a person throws a knife across the room, but in doing so the flying knife somehow manages to cut the neck of an animal in just the correct fashion to perform a kosher shechita (ritual slaughter). Is the meat of this slaughtered animal kosher?

חולין לא, א

דתני אושעיא זעירא דמן חבריא זרק סכין לנועצה בכותל והלכה ושחטה כדרכה ר’ נתן מכשיר וחכמים פוסלים הוא תני לה והוא אמר לה הלכה כר’ נתן

Oshaya, the youngest of the company of Sages, taught a baraita: If one threw a knife to embed it in the wall and in the course of its flight the knife went and slaughtered an animal in its proper manner, Rabbi Natan deems the slaughter valid and the Rabbis deem the slaughter not valid. Oshaya teaches the baraita and he says about it: The halakha is in accordance with the opinion of Rabbi Natan that there is no need for intent to perform a valid act of slaughter.

 The Fish That Pulled a Plough

The Bible (Deuteronomy 22:10) forbids a farmer to plough his land using an ox and a donkey together. While no reason for this law is given, we might suppose it has something to do with the concern that doing so might cause unnecessary pain to the smaller (or perhaps the larger?) animal. Regardless of the reason, the Talmud explains that this law applies to any kind of work and any two different species of animal. Then comes this fantastic question: “What is the law if someone pulls his wagon using a goat and a fish?” 

בבא קמא נה, א

בעי רחבה המנהיג בעיזא ושיבוטא מהו מי אמרינן כיון דעיזא לא נחית בים ושיבוטא לא סליק ליבשה לא כלום עביד או דלמא השתא מיהת קא מנהיג

The Sage Rachava raised a dilemma: With regard to one who drives a wagon on the seashore with a goat and a shibbuta, a certain species of fish, together, pulled by the goat on land and the fish at sea, what is the halakha? Has he violated the prohibition against performing labor with diverse kinds, in the same way that one does when plowing with an ox and a donkey together, or not?

This turned out to be such a hard question that the Talmud could not answer it. The Rosh concludes though that just to be sure, best not to hitch up your wagon to a fish, if you also intend for it to be pulled by a goat (ולא איפשיטא