You can also freak the hell out of people by eating them.
You get a package, open it in a public place and then proceed to eat the peanuts (just make sure they're the corn starch ones).
Great for a laugh.
They're a little doughy but not bad. And no side effects. At least as far as I can tell.

Uh... I've never done this of course. I um.. saw somebody else do it once.

Z~
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...all I ask is a tall ship and a star to steer her by.