A Muslim university lecturer approached Britain First Paul Golding in Leicester on Saturday and proceeded to calmly demolish everything he said.
The conversation was interrupted a number of times by protestors and at one point Golding had to invite Khan across the police line separating the two groups.
The (rather badly shot) video can be watched below and a transcription follows.
When asked why they carry out mosque invasions, Golding said:
A few days later Khan was interviewed about the encounter.