Now that you mention it, it gives me an idea for an episode plot for the rumored "Equestria Academy" series.



What if someone (who wasn't swayed by the Dazzlings btw, don't ask) saw Flash's hostility towards Twilight and records it on video and blackmails Flash during a very important event?



I mean Flash and his band would be auditioning for a world tour, but someone who hates Flash threatens him to stand down or else he will post the video online.



Flash might not remember the event, but after seeing the video would make him feel guilty regardless in a "I actually said that?" sort of way.



I mean if someone recorded an action you don't remember making (even if it actually happened) you would probably don't want such a footage being shown anyway.