Well, my new rage story is that I was playing as Rogue against Warlock:
On my turn, he's at 13 life and I have a 1/1, a 7/2 and a dagger, so I Sprint into a Perdition's Blade, 1 short of lethal damage and only have 3 life left, so I kill off his minions and I'm left at 1, and him at 6. Then he taps, and top decks Infernal.
And just the next game, a Hunter top decks a Freezing Trap and sends back my enraged Worgen when he's at 7 and I'm at 2.
Nothing is worse than a top deck loss. At least you can feel comfort that there was nothing you could've done to prevent it (I assume). The best case scenario would probably be a draw, unless you had a taunt on the board.
But I really feel for the freezing trap one. It is a somewhat rare secret, but it literally can kill all momentum. Playing around secrets is so difficult, especially when you're up against a hunter. You'll spend so long trying to avoid attacking just so you can send a smaller unit, but by then he's already gotten enough damage off to screw you over--or he'll keep killing your new spawns and leave the big guy to suffer from the trap.
I had a similar issue with redemption today (in arena). This guy gave a scarlet crusader might and used it to kill one of my big units. Not only that, he bubbled it again with argent crusader. I popped an abomination to get rid of some of his units, but after killing it, he popped redemption and left his scarlet crusader at 6/1. I finally put a minion on the board, but he had another response for it, and for some reason he popped his hero power. So I used my hero power to kill it to trigger redemption, but I was left with no choice but to fireball the 6/1 down. By then, I was so far behind and I had gone another turn without any minions on the board, and I was so low in hp from taking damage from the 6/1. I didn't want to kill it because he would respawn as a bubbled 3/1, which I really had no answer for. :\ I suppose I should've killed it earlier when I had the chance rather than putting up minions--oh well. Bubble is just so annoying, as are secrets.
EDIT: Just lost my 12th (technically, 14th match) round in arena. This happened to me twice already in the last two runs as rogue. I get to 11-2, and then poof I lose the last one. This time it was against a shaman. He had a very solid deck (earth elemental, 2 overload axes, earth shock, overload elemental, lightning bolts, forked lightning, mana tide totem, hex, etc.). My deck was very bad in draws, so once I got AoE'd down, I had no turnaround and he was able to flood. I'm still happy with 11, it is just painful when you're so close. It is not nearly as painful when you lose at 9 or 10. But the rewards were awful too. Just a ton of gold and one pack with 1 rare 4 uncommons.
I won that game, but that sort of thing hurts your morale. 
