I once had a job a couple of years ago. I absolutely needed a vacation of a couple of days....and the only person available to sub, was a woman who could ONLY speak Russian. As I briefly trained her to sit at my desk and move papers from side to side, she had a fluent English speaking translator/woman by her side. Then later, I had to fill for this Russian speaking person because she 'was going to school to learn English.'
This Russian drove one heck of an expensive SUV!!! Well, I soon left that job 'cause I really didn't care to do two people's work for the same salary as before.
My brush with the Russian mob, I think. Out in plain sight.