The lottery winner's curse. It's off to a bad start! Instead of freaking out about who's gonna take their money, they should hurry getting it first. For now, they only have a winning ticket, and that's dangerous indeed. Even the regulation usually calls for proving where you purchase it too for it to be valid, specifically for those thefts and murders over it to not happen, should protect them. but they're not thinking, mind fried by the prospect of Deutshmarks!
It's a really interesting setup, especially as trouble is brewing. They'll think it's about them and some stray shoots might hit someone, our friends or their foes!