It's happened to anyone who's ever sent a text message; the phone is programmed to assume--that's the key word, here, assume--what you are typing.
I sent a text to my daughter recently saying, "Hi baby, I have heart-ache for you today." How silly of me to expect what I typed-in to actually end up being what I typed-in! Thanks to 'Auto-correct', the message ended up reading something like this; "Hi baby, had heart attack for you today...(smiley face)"!!! The poor thing freaked-out and called me right away; thank goodness we got that straightened out!
Talk about "putting words in your mouth"!! We need an app that corrects the auto-correct.