Devarim/Ki Teitzei - Stones

Chapter Ki Teitzei begins with four themes, in the following order:

1. During a war, a soldier may see a beautiful woman among the prisoners and wish to marry her (after 30 days of preparation)

2. If (after cohabitation with her) he no longer desires her, then he must let her go free

3. If a man has a second wife, one beloved, and the other hated, and the hated one gives birth to his firstborn son, then he must treat him like a firstborn and give him a double portion as an inheritance.

4. If a man has a son who is deviates (from the path of the Torah) and is disobedient, etc.

RASHI asks: why does the Torah describe these events side by side and in that exact order?
Then he explains that: Torah does not want the warrior to marry this foreign woman, but if he does marry her (point 1), then as a result he will receive points 2,3,4, i.e. in the end he 2) will stop loving her, 3) will hate her, and 4) she will birth to him a rebellious, disobedient son, etc.
It is interesting to note here the method of interpretation that RASHI uses, namely - it explains that the sequence of adjacent topics in the Torah has a deep meaning and teaches us a separate, not obvious lesson of life ...
And so, the formula used by RASHI in this case is:

If you do what is described in point 1) then what is described in the next following points 2), 3), and 4) will happen to you.

So now, using the principle that the end is implied in the beginning, let's turn the pages from the beginning of the chapter to the very end, and see how this pattern works at the end of the chapter. There we see the following sequence of topics:

1. When a brother died without leaving offspring from his wife, then his living brother must take the widow of his deceased brother as a wife to give birth to a son from her, and thus not allow his brother's name to be "erased in Israel." If the brother refuses, then he must undergo the HALITSA ritual in order to free himself from this responsibility.

2. If two men are fighting each other and the wife of one of them will reach out her hand, grab the attacking man by his genitals, etc.

3. May there not be two pebbles in your pouch - small and large, etc.

4. Do not forget what Amalek did to you ... when he cut off the weak ("vaizanev bha) .. when he attacked you ... you must erase the memory of Amalek from under Heaven.
Here RASHI explains that the expression "cut off the weak" - "vaizanev bha" - means cut off the penises of the weak Israelites who were following behind, and threw them up to Heaven.

Applying the above RASHI formula in this context, we get the following life lesson:

If you (1) still go through the HALITSA ritual, refusing to continue the lineage of your brother in Israel, then you will come to a situation where (2) you will fight with him (maybe in a future incarnation?), and his wife will come up and grab you for the genitals, from which (3) there will be no stones in your pouch (scrotum?), neither small nor large, and then (4) Amalek will come and cut off your penis to erase your memory from under Heaven.