https://en.wikipedia.org/wiki/Personal_property#Personal_versus_private_property
If that description of personal property does not work for your individual consensus, please provide one (that is testable) for the purpose of this conversation.
That definition (in the subsection about political theory) seems fine (and not at all what you previously claimed), but it says little about how to practically determine ownership of personal property. The commonly agreed method to do so is “regular usage”, as I have been repeating here many times over…
Who is commonly agreeing to this? What counts as “regular usage”? I regularly use the toilet at work. Would it become my personal property?
The various people that have developed this political & economic theory on which for example the definition on the Wikipedia page you linked is based on. This is literally something that has been discussed in detail for over 150 years now.
And yes, you as an employee of a company would become a co-owner of that company, and therefore the toilet would be partially yours, but obviously not exclusively.