I know of one time where a party in CT tried to kick me, but the vote did not pass. Most of the group was made up of my FC mates, so they all voted no - I had disconnected because my cat knocked my PS3 over and unplugged it. I was gone less than 5 minutes, but the one person tried to kick me immediately when I went offline. I was using Teamspeak on my laptop when it happened, so I told everyone what was going on and that I would be back as soon as I could.

But no, I have never actually been kicked.