Ok, in the spirit of today's date, I thought I'd dredge up a story from my Star Wars roleplaying past. I don't think I've shared it here before, but if I have, forgive me.
Caveats - it was a long time ago and some of the finer details escape me. Also, it might have been one of those "you had to have been there" things.
Setup: This campaign took place way back in the height of the d20 (pre-Saga) Star Wars RPG. Flawed as it was, still love that system. We were playing during the post-Endor Thrawn era. We mostly messed with criminal gangs and such, but we did have a running antagonism with an Imperial research division, headed by a bit of a mad scientist. Because of this, the NRID (New Republic Intelligence Directorate) had a working relationship with us. They'd contract us to hit outposts, or we'd sell them info we acquired in our day-to-day hijinx. What we DIDN'T know is that our contact was a mole for the Mad Scientist. Actually, he was a regular Imperial mole, who was then co-opted by the Mad Scientist, because he didn't want the Empire to know what he was doing either, but anyway...
The story:
We had recently come into possession of some schematics for the P.L.O.T. device, which only required a source of refined Maguffinium for deployment. This was bad. So, we swing by Coruscant, and I'm tasked with making the drop. I'm playing an earlier incarnation of my Kel-Dor assassin, more of a pin-stripe suit mob type in those days. (I like playing the same character in different systems the first time in to get a feel for how things handle differently for subsequent character creation.)
So, I drop off the info, the contact looks it over, looks suitably impressed, and then goes to get the payment. As usual, it is a datapad with a large secure data unit attached (basically the equivalent to a slightly bulkier laptop). We did it that way for deniability reasons. Won't go into it, but it was part of the cover. So, I grab the machine, and leave the building, to take it to the drop off point for the money. About halfway there, I get stopped by a cop. Asks me the normal questions, which I feel I navigated pretty well. Then he asks to see the computer. I tell him it's a private package that I've been paid to deliver, as I'm a courier. About this time I notice several more cops coming in from the sides, slowly working through the crowd. Not wanting to make a scene (it's a crowded area) I hand it over, thinking it was an encrypted computer. He grabs it, pops out a knife and pries the case open, and glitterstim goes EVERYWHERE.
Well, that's embarrassing.
There's a few seconds of the cop and I just staring at each other blankly, the crowd around us more or less oblivious, while the other cops arrow in on us. It was, obviously, a setup. Our contact saw our information, realized we were far, far too dangerous to let go this time, and set us up. So, anyway, back to the staring. I did the only thing that seemed prudent. I open-hand slapped him in a surprise round, and took off through the crowd. One of the traits of this character was small size and high agility (he was supposed to be a mix of Joe Pesci and the acrobatic guy from Ocean's 11) so it wasn't TOO hard for me to lose them.
From there, it turned into a few sessions of dodging the immediate repercussions of being betrayed (gathering everyone back up, getting to the ship, getting outta the sytem) and then onto the long-term arc this put us down. I will always have a special place for that slap though. I think the GM was as shocked as the cop.
