TIL about Titivillus a medieval demon that would feed on misspellings, mispronounced syllables and mumbled words. He was considered a natural enemy and tempter of scribes.
TIL about Titivillus a medieval demon that would feed on misspellings, mispronounced syllables and mumbled words. He was considered a natural enemy and tempter of scribes.

My Old Nemesis Titivillus - Lost Art Press

I initially wrote 'temptor' in the title but then double checked. Not today, Titivillus.
Caveat Temptor