My most interesting moment was after helping the Companions retrieve an artifact from a temple way up in the mountains north of Whiterun. I fought my way through hordes of undead, found the item, fought the ensuing hordes of undead picking it up triggered, and headed for the exit whistling a jaunty tune. I was full of loot and feeling quite proud, but I was definitely in "get back to town, battle's over" mode.
Stepping out onto the mountain, I see a blizzard has kicked up in my time inside. "No biggie," I mutter to myself, as I begin my trek back down the mountain.
I reach the cliff edge, when I hear a roar. Wheeling on my heels, I see a GODDAMN DRAGON perched on the cliffs above. I drop into sneak mode, hoping it hadn't spotted me, but it was no good. The beast dove over me, ice breath crashing all around me. I was done for if I stayed on this mountain, I knew it, so I ran. I just jumped, slid and bumbled my way down the mountain in a frantic burst, the roars of the dragon seeming to nip at my heels.
As I reached the bottom of the mountain, a pack of wolves emerged from nearby and charged after me. "Great," I flustered. Scrambling to switch to my flame spell, the entire area erupted into ice crystals and freezing air. "THE DRAGON!", I screamed to no one in particular.
Out of no where, three Imperial soldiers show up and start attacking the dragon, ignoring the wolves, who are now also attacking the dragon.
I took this opportunity to hide and/or run away and snipe with my bow. Crouched behind the nearby foliage, I watched as the combined efforts of the Imperials and wolves took down the mighty beast. Then they turned on each other.
When it was all over, there was one Imperial left. I walked up to talk to him, to try and offer healing, but he just sheathed his sword and ran away.
I stood there for quite a while. Just blinking at the soldier running off into the snowy air of Skyrim. I was certain he would have the best tale at the mead hall tonight. ^_^