Cashew: "Go on Karsty, eat me. I'm full of nutty goodness!"
Karsty: Um, OK.
Bad move. OK so apparently I haven't learned everything there is to know about nature and/or safe living just yet. Did you know that the cashew is mostly an accessory fruit with the nut encased in a shell attached to end of the fruit? And furthermore that it's quite yummy and makes a good drink when mashed and mixed with cachasa? I didn't. Check it:

Diana didn't dig it as much as I did:

Furthermore did you know that the nut is encased in a bath of highly toxic poison featuring poison oak's urushiol that must be carefully removed before it ends up on store shelves? I didn't. It does this so animals don't eat the seed. Check it:

That's not me making a face kids, that's a genuine reaction after biting open the shell thereby filling my mouth with poison and creating a nasty toxic foamy paste:

Yikes! Hard to describe, but similar to what poison ivy mixed with extremely under ripe persimmon might taste like. It was funny at first, until Emmet started researching my "mad dog" reaction on the internet. We jokingly figured I had about a 50% chance of dying on the bus ride from Rio to Ouro Preto later that night.
I lived though! Yay, more vacation! :^) I'm writing this about 48 hours after the event and the cashew effects are still going strong. My mouth is more or less normal (slight tongue numbness), but my lips are peeling off a few layers of dead skin and I have a small rash on my chin. Thankfully there's no poison ivy like rash inside my mouth and down my throat. ;^)
The worst part is that I don't even like cashew nuts! The fruit is really good though, and incidentally somewhat similar to durian. So be careful out there when putting new things in your mouth, everybody. :^)