Yup, auto-complete recognition of speech. It's the reason we repeat safety announcements on airplanes and such. Your brain auto-completes the sentences even if you are unable to clearly hear the instructions. In a smoke filled airplane during an emergency , your brain "hears" the instructions by itself.

Ain't science neat? Too bad y'all reject it at every opportunity. (but then again, who wants y'all to make it out of the burning plane anyway)
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I really wanted to go to that Bukake because I thought for sure that you were going to be on the receiving end. - Ryan Knox to Jeff Steward