It’s really bad to read message boards about potentially scary things, like the Swine Flu, when you’ve only had 3 hours of sleep. Especially when you stumble across them by accident. And MOST especially when the members are discussion it in a rational, well educated tone (and not one of panic and fear mongering) and yet they are clearly concerned.
The exhausted brain could go quickly from a mildly concerned state (lots of hand washing and avoiding the T-Zone) like THIS:
To a more agitated state, somewhat similar in manner to THIS:
Ah, yes. The joys of having an overactive imagination. Lovely stuff that. What? What? Ta-ta, Cheerio, Toodle-oo and Pip-pip!