I was 18, it was the day after I finished my final high school exams, I had partied with a few girls, most went home, 2 of us – me and a friend – were trying to find a place to drink something. We ended up at some gas station, as all other stores were closed, and tried to buy alcohol.
Some people were standing there, too, waiting in a queue, some of them migrants, some obviously homeless, some kinda nice dressed.
A friend of mine tried to pay with her EC card, and was too drunk to use it or enter her PIN – so she asked if someone of the other crowd would be able to help her (I, myself, was also quite drunk). So she gave this guy her wallet, told him to "take out the yellow EC card, PIN is 2814"[1], and indeed, he did this.
They – also wanting to buy alcohol – asked us if we wanted to follow them to a nearby party. We did, and ended up having a fun night playing singstar with them.
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In Conclusion:It’s not ethnicity, or social class, or homogenity that leads or prevents crime.
We’ve done similar things not once, but several times. And you know what? Never was anything stolen.
Once I forgot a jacket, and couldn’t remember where anymore – next morning someone had posted the jacket onto a facebook group of the city with 60k users and I was able to get it back.
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[1]: PIN changed for obvious reasons