you felt no need to refer to another owner.
Correct, because I assumed it would be understood.
At the bottom of this thread is a complete summary of my views on property rights. As you can see, the final principle is all about homesteading.
Now, if you want to interpret “to use a thing which you do not own” contrary to what it was intended to mean, and then attack that strawman, go right ahead, but I have nothing further to say on the matter.