Going back from Darkroot Garden/Forest to Undead Parish, having befriended the friendcat and slain the frienddoge. Plant things assail me, they are shorn in twain by my thousand-times-folded Eastern steel. Except one. It grabs me and applies plant hugs. The thing is, we're both on a ledge and we both fall off DURING THE GRAB. We hit the point where "YOU DIED" would normally show up, but the plant dies instead of me and I somehow survive with a sliver of health. Then I keep on falling. I can't use a Homeward Bone or even the Darksign. I can't Toxic myself with Dung Pies because I fed them all to Frampt, I can't wear the Symbol of Avarice to suicide because I haven't found it yet. I keep falling for a couple more minutes, hoping that I'll bottom out and die. No such luck. I search through my entire inventory, looking for something that will help. I turn up the Cat Covenant Ring. I put it on and, sure enough, I end up invading someone in record time. Just my luck, its a munchkin with a troll mask, a sword bigger then I am, and the heaviest armour in the game. I decide to go down fighting and charge. I hold my own pretty well: He can't fastroll with that armour and his greatsword is slow and easily blocked. Still, I don't land any hits on him and I'm still at literally no health. Suddenly, another dark spirit invades. I retreat, hoping my new ally will save me. No such luck: Its a Darkwraith, hostile to both me AND my "victim". But the new arrival doesn't seem to realize that, and engages the guy I was fighting. I backstab the new invader and the jumbo-sized munchkin kills both of us with a single hit. Exactly as planned.
Dark Souls: Prepare to Die Edition
This is the best glitch I've yet run into. 10.12/10, would do again.