[RedMagician]

Well, from my part, I've experienced many stupid battles, but I remember one.

FFX. Omega weapon. This battle took about one and a half hour.
I had about 30 megalixirs. The battle started as boring as ever. After almost every hit, I had to cure my characters with Megalixir. One hour the same hit-and-cure tactic.
As you prodably guessed it, I ran out of megalixirs. That was some serious problem. Trust me. I was writing my last will, but then I realized something. MAGUS SISTERS!! I used them and killed Omega. But oh my god was I furious.
About 30 megalixirs gone, all because I didn't think.

And then I remember fighting Storm Dragon in FFVI. Opened the chest and there it was. I didn't except that, but I didn't have a choice. I was killed .
But then, I came back and kicked it's sorry ass. In about one hour .