This happened last summer.
My sister-in-law captioned a picture of her daughter on Facebook: "I love my daughter so much! She's so cute!"
My mom used her iPad's speech recognition to reply: "Ain't that the truth!"
My mom's iPad interpreted her words: "Not the truth."
Because my mom doesn't proofread, what got posted: "Not the truth."
Fortunately, I asked to look at the iPad so I could see the picture. I quickly noticed and deleted the comment, but not before laughing and laughing.