I just got this great idea. I invited my blind friend to play darts with my ex.
Is this a setup for a joke?
No, I'm actually going to do it.
I think that you should for real let them know. It is not okay to play games with your friends that you know they will physically not be able to play.
Whatever. I'm hoping my blind friend scores a bullseye on my ex's head.
What are you thinking? You're going to put your blind friend in a humiliatingly situation to get back at your ex? Your being mean and disrespectful to two people just to get revenge; it's time to move on to more positive endeavors.