A huge group of young people posed as protons and ions in a recent flash mob in Moscow metro.
The two groups wore paper hoods with the names of particles written on them. After a brief trip in Metro cars, the proton and ion teams exited at one station and collided on the platform, making a mess on the floor. The political movement Rossiya Molodaya (Young Russia) has claimed to be behind the event, but made no statements concerning its purpose.