you can come to the point where you regret it
I can’t foresee any set of circumstances where I will regret calling my wife and kids by nicknames.
I can’t foresee any set of circumstances where I could be convinced that Young Earth Creationism is correct*.
Either of the above causes one to lose their chelek in Olam HaBah according to many opinions.
There are other things as well, but those are the two that come to mind first.
The Wolf
* Just to be clear — I *do* believe that HKBH created the world and is a manhig in the world. I just believe it’s well over 5771 years old.