I've had a similar experience to TracerBullet's:
It was 2e, and I was playing what I constantly referred to as an "inept mage" who was really a thief that coveted as many spell producing magic items as he could for his "spells." At one point, the party ended up trapped in a strange underground complex and stumbled upon a cavern filled with mountains upon mountains of treasure - and the deep dragon it belonged to.
One save against breath weapons later, my "mage" dove behind a hill of treasure and was separated from the rest of the group. So I did the logical thing: opened my
bag of holding and shovelled treasure in as fast as possible, all the while yelling my opinions about what to do at the rest of the group. A few rounds later we all decided it was best to flee the scene and escaped.
A little while later, we found ourselves at the exit - but it was blocked by a Living Wall (remember those?) and a cryptic clue about having to sacrifice something (or someone) to it in order to leave.
Just as we were puzzling over it - enter the Dragon for round 2 (a very
angry round 2 since I had stolen from its hoard). Another long fight ensued but in the end, we won since we managed to force the dragon to touch the wall and thus it was consumed (and luckily - we gave it what it wanted so it let us out).
So later, we're in a tavern and I declare that I'm counting up what I managed to steal and the DM describes to me an exquisite statue of a Dragon with a riddle carved into its base. My appraise skill tells me it is worth easily half a million gold! The riddle is simple enough and once I declare the answer - it opens up to reveal the Deck of Many Things and I decide to take it but that causes the dragon statue to disappear.
Bummed about it, I draw a card - get the 1d4 wishes, roll a 1 and with a big smile back on my face, I loudly declare:
"I wish I had that Dragon back!"
J from Three Haligonians