Levels of Distractibility: Who cares? = *. Some people will be distracted from your meaning: = **. Many people will be distracted from your meaning: = ***.
Problem: A couple of words that sound alike but are spelled differently and have different meanings.
"Mantel" = shelf as in the mantel piece over the fire place. "Mantle" = cloak, a long cloak like that worn by Christ or as pictured on Mary, His mother, in most statues of her.
"Meddle" = interfere. "Stop meddling in my affairs." Mettle" = courage. "David showed great mettle in his battle with Goliath."
Rating of Distractibility: = (?) The second word in each pair of words will probably be little known and rarely used.