There is at least one exception in my opinion where this is acceptable: when writing special characters with diacritics etc. (for example é, à), caps-lock can help capitalizing these letters since they often already require shift to be pressed. I’m aware that there are other ways (i.E. type the diacritic first, then the letter), but the caps-lock way seems easier to me.
Reminds me of a storyline in Guild Wars 2 (spoilers ahead):
HUGE Guild Wars 2 living world season 4 (?) spoiler
One major antagonist named Joko is a lich, meaning he is kinda unkillable. During the story he is eaten by a major character, a dragon named Aurene. This ensures that he is truly dead. Earlier in the story he already died once and resurrected.
Later on Aurene even resurrects using his power because she ate him.