So, I've been trying to read everything on this thread.....wow! Its alot. Great work. I didn't notice Visine listed here. Everyone believes it will give you diarrhea, but according to Wikipedia that is not so....
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~snipped & BBM~
[ame]http://en.wikipedia.org/wiki/Visine[/ame]
Visine Prank
A common urban legend is that a few drops of Visine in an unsuspecting victim's drink will cause a harmless bout of diarrhea. This will not produce diarrhea, but oral administration of Visine can induce dangerous side effects related to Visine's ingredient tetrahydrozoline hydrochloride such as:
Dangerously low body temperature (hypothermia)
Blurred vision
Nausea and vomiting
Difficulty in breathing or even a complete halt in breathing
Elevating (hypertension) then dropping (hypotension) blood pressure
Possible coma
Seizures and tremors
Pfizer recommends that anyone ingesting Visine get medical attention or contact a poison control center immediately.
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I didn't check anywhere, but it would seem to me that tetrahydrozoline hydrochloride wouldn't be a usual and customary thing to check on autopsy, especially if you don't routinely check for GHB. The hyper/hypotension would definitely make someone loopy and easier to control......what if Visine were being slipped into drinks, the guy gets sick, and some "good samaritan" offers to "help", guides them out, into car........rest is history. Just speculation.