On my way to the toilet just after the first goal I was chased through the concourse by two young stewards, one male, one female who said that CCTV had identified me as vaping in the stand, although after I gave them a "WTF" stare they hastily admitted that it might be a case of mistaken identity. I did explain to them I wouldn't have had the foggiest idea how to vape.
They replied that if I wasn't the guilty party then I should report any spectators near me if I saw them vaping when returning to the stand