Sometimes I wish I was in a wheelchair.
What? Why would you want something like this?
I would be able to find more common ground with my friends.
Wishing you were in a wheelchair generally isn't a healthy thing to wish for.  People only use wheelchairs when they're injured normally, so you're wishing harm upon yourself!
How does it matter anyway? I'm just wishing I was in a wheelchair. It's harmless.
Do you think people in wheelchairs might be offended if you don't actually need one? People in wheelchairs are just like you and me you can treat them like normal people and find common ground in interests and hobbies.