The last really bad date I had was a few days before x-mas 2005.  Here's how it went down:
A friend of mine introduced me to this girl.  We talk for a bit on AIM and on the phone.  She is totally into me and asked me out on a date several times.  I agreed to go pick her up at her house.
Here's what went wrong:
- She told me to pick her up a block from her house (parents asks too many questions), I was 1 block way in the wrong direction, so I went to her house instead lol
- She got really drunk the night before, hung over
- Kept looking at her phone (later found out it was ex-bf who was calling)
- We were due to go to benefit dinner, she needed to go home due to the hangover, I said ok.
Recap: 
She calls me the following day telling me what a great time she had.  A few days later, I called her, no answer, no replies.  A week later, she calls saying let's just be friends, I'm her ideal guy, etc. etc.  I said, "Sure." then hung up on her.
I later find out she had just broken up with her ex and he wanted her back.  Stupid b!tch wasted my time!