i experienced this scam 2 days ago between waterloo and vauxhall.
The man didn't say a word, but definitely looked romanian. Probably one of those disgusting lot begging, scamming, stealing, pick pocketing, etc on oxford street and camping out and turning park lane and marble arch into a slum.
i immediately chucked the tissues and his sign out of the window of the moving train. He of course suddenly found the power of speech and used broken english to demand i pay up. I refused. I told him begging was illegal, that he definitely did not have 2 sons he couldn't feed, and that if he did, he needs to get a job.
He tried to pretend he couldn't understand me, and seemed to get a bit more aggressive for demanding money from me for chucking his tissues away. I refused, and told him i would be reporting him to staff at the next station. He seemed to understand that well enough and stormed off.
Stupidly, some passengers then tried to have a go at me. I tried to reason to them that it is nothing more than a scam, but it fell on dead ears.
Thanks to the loony left, we will have many thousands more flooding our streets, claiming benefits, and topping themselves up with this kind of begging. expect it to get a lot worse come january.