Basically, I want LibreOffice Calc to do what I tell it, not what it wants.
For example:
If you want your input to be interpreted as text and preventing Calc to do fancy (and annoying) things with your input, you have to change the format before entering any value.
You may need to tweak the 'autocorrect' options as well. Go to 'Tools > Auotcorrect Options...'. Here is a link that may help: https://help.libreoffice.org/Calc/Deactivating_Automatic_Changes