Go back and read proverbs again.
There is a comma followed by an ‘or’ separating two different situations. Stop trying to make them one. The hand striking is an ancient sign (4000 years) of an obligation under a ‘brotherhood.’ That obligation is binding even unto death. “Mystery, Babylon”
Or not. You can remain ignorant in denial.
“Go back and read proverbs again.”
Go back and learn the basic facts about Scripture again. There are no punctuation marks in Hebrew, so no, there is not a comma between the situations, except where it has been inserted by translators. Clearly, they are clauses of one statement, since neither phrase makes any sense if taken by itself.
Now, you continue to assert this nonsense that the Bible is talking about some secret handshake, but you still haven’t shown any evidence from Scripture for it. Got any evidence from outside Scripture to back up your assertions that “hand striking” generally meant a secret handshake of an esoteric order, and not the much more obvious interpretation of a regular handshake?
I mean, in the context of getting a loan, and providing a surety, a regular handshake makes immediates sense, since it is a traditional way to signify the completion of a transaction, or the giving of your word. In the pre-literate world, I imagine it was much more commonly used for that purpose than today, since most people couldn’t read, write, or sign a contract with more than their “mark”.
Your interpretation, of some secret sign, doesn’t fit in the context at all. What does a secret society handshake have to do with taking a debt or proving surety of such? For the life of me, I can’t figure it out.