What about the dictation challenge?
Although this one has a bit of a twist and mostly work if you speak a language besides English. Reply to posts on the forum using the dictation feature on your phone, only, while keeping your language setting in English, dictate in whatever other language you speak, answering the question, then post the garbled nonsense and wait for responses (as the system would still try to figure out whatever you said as English words).
I've actually done this before as a little joke on friends and the confusion is absolutely priceless!
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There is one rule above all others for being a man. Whatever comes, face it on your feet.
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