Your blind date isn't going well; What do you do?
This is the part in your life when you just have to suck it up. Sorry guys, but you're already out with her. You're not going to run off to the bathroom. You're not going to have your friends make an emergency phone call that you have to go and leave her stranded in the middle of the restaurant.
It's only a couple hours. You'll be okay.
The best thing you can do to prevent this if you really don't know what you're getting into and you're not sure and you're a little nervous, limit the date's time. Instead of going to dinner and committing to a meal, go to drinks. You can have one drink and call it a night. Say you have somewhere to go. You have to be respectful. Karma is a ...
If the date is really, really bad, I mean painfully bad, you can cut things short. You don't feel well, but you have to end it. The worse thing you can do--I would hunt you down and find you if you do this to someone--is just walking out on somebody without telling them anything. You need to say goodbye at some point, whether you do it gracefully or not is up to you. You have to actually end it. If it's that bad, figure out a way to end it, but do it respectfully.