While eating in a restaurant, I reprimanded my four-year-old son for speaking with his mouth full. "Mumpf umn Kmpfhm," was all I heard.
"Drew," I scolded, "no one can understand a word you're saying."
"He says he wants some ketchup," my husband said calmly.
A woman sitting nearby leaned over and asked, "How in the world did you understand him?"
"I'm a dentist," my husband explained.