Not long ago I sent my wife Cari a text message using only voice prompts. I was on my way out the door to give her a ride home from work and intended to send the words, “Where would you like me to pick you up, old gal?”

Cari doesn’t mind my calling her “old gal”—it’s one of the affectionate nicknames we use around the house. But my cell phone didn’t “understand” the phrase, and sent the words “old cow” instead.

Fortunately for me, Cari immediately understood what had happened and found it funny. She later posted my text message on social…