My sister-in-law recently spilled some water on her Macbook, and she posted about it on Facebook (this is not the part I think is stupid). A brief discussion following the post ensued with suggestions about the best course of action. One of her 'friends' then posted that she should buy a replacement water indicator sticker for the computer, replace the damaged water indicator sticker, and take the computer back to Apple to get it fixed free.
I said that I thought it was a rather foolish idea, since this person was openly advocating committing fraud in a public forum, and that many employers now research people's facebook profiles before hiring them (it turns out this person's profile is totally open). I pointed out that there would be other indicators of water damage. My entire post was 8 sentences long.
And then that person freaked out on me, saying she was 'joking', and that she hadn't been at all serious in her suggestion. Then she accused me of over reacting in a five paragraph 30+ sentence response.