When you want only 10 rows of query result.
Mysql: Select top 10 * from foo.... 😁
Sql server: select top 10 * from foo.. 😁
PostgreSQL: select * from foo limit 10.. 😁

Oracle: select * from foo FETCH NEXT/FIRST 10 ROWS ONLY. 🌚

Oracle, are you trying to be more expressive/verbose because if that's the case then your understanding of verbosity is fucked up just like your understanding of clean-coding, user experience, open source, productivity...
Etc.

I just want to know why would I find (all of the fucking sudden) tnsnames.ora and listener.ora localhost changed to local.docker.something?

WHY ORACLE? WHHHHYY?

When oracle employees decide to add new "feature":
How can we add feature X so it can be the user new most terrible nightmare?

When oracle employees decide to update an existed "feature":
We have discovered that the users of feature X have found a work-around to make it useful, we need to update that feature to make it the users most terrible nightmare ever, and we would like to make the upgrade/installation process break everything else installed on their machines without possible way of recovering, and if it worked by any chance we would like to make that process frustrating as fuck.

Fuck Oracle, fuck you oracle! The stupidest shittiest worst nightmare company with the most user-unfriendly, productivity-killing, illogical, stupid pile of software garbage products ever! And unfortunately I want to extends my worm-fucks to all Oracle employees and maintainers and to the whole fucking community of shit that made up oracle-community and to every conscious being who ever liked, enjoyed or have found the slightest genuine interest of any product tagged "oracle".

I installed the pile of shit a.k.a Oracle 18c and imported a dumb file locally, everything was working in the slightest amount of the word (fine) before it turns to nightmare. I created a C# client to call a stored procedure in that shit of a database engine. I kept getting error related to the parameter types, specifically one which is custom type of Table of numbers. It turns out that the only of doing this is through that shit they called (unmanaged driver), the "managed" doesn't support custom types. So I had to install another package of shit they call (odbc universal install) "universal my a$$ by the way", at that moment, where everything just crashed and stopped working. I spent 3 hours trying to connect to the fucking database to no avail. I shockingly found a folder in my desktop folder called (OracleInstallation) and all windows services related to oracle installation "suddenly" got somehow (re-routed) to that folder.
In conclusion, fuck oracle.