Party Mode, Playlist locking

I'd like to see a party mode for Spotify, which would lock the playlist. This comes after using Spotify for a party, and we had lots of problems with people searching for songs, double clicking the song and continually replacing the playlist we had set with a new playlist. We did try educating people, but after a few beers people don't care! Ideally, when party mode is on, and someone searches and clicks a song, instead of interrupting the playlist, it simply adds the track to the bottom of the play queue. This would make my life so much easier!