As I see the situation, she wants to take her shopping trolley to a bronze age re enactment, but she is worried it might not be authentic - and she has to risk her bronze age pals remarking acidly - can I bring my bronze age i-pod then?

That's probably why the Iron Age gang wiped them out - no trouble. The Iron Age boys would have let you park your yuntz outside the cave without quibbling - they knew the meaning of compromise.