I have experienced. But not in Qatar.
1) At the counter when I was about to pay my breakfast bill, suddenly 5 to 6 peoples around me and they create the scene like they are in hurry to pay their bill than you even in front of the counter. One of them try to search something in my pocket and I realized and hold his hand.

2) At bus journey, When my stop came, I get out of the seat and rushing to the door , suddenly I realized three - four people too rush behind you. They create a scene like they are in more hurry than you. In that situation one fellow tried to put his finger in my pant pocket and tried to pick the money, I realized I turned back, he escaped. Sorry they escaped.