This scooter driver had two early morning shocks - one having an accident on his way to work in Southwark, the other being helped off the road by London Mayor Boris Johnson.
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Six people were injured after they were hit with the substance during an "altercation" between two groups at a shopping in east London.
Save Your Uber in London was set up after it was announced the firm would not have its licence renewed when it expires next week.
Survivors are still traumatised, homeless and want answers.