Hope this is not too "off-topicey". I ended up at the Emirates yesterday after I was invited by the old man's friend, with two extra tickets up in an executive box. Anyway the reason that I ask is because in one of the corners of the ground, there was a loud bang just after Boca Juniors equalised which sounded all around the ground, with a load of stewards rushing towards it afterwards. People thought something had caught on fire or someone had let off a firework. It sounded to me however like a microwave had exploded. Anyone more informed know what it was?
