One time I was working at a petrol station and a lady said to me
"do you know what you are? you are an angel, and don't let anyone tell you that you are not." I remember when she said the words "do you know what you are..." I was worried she was going to tell me I was an *******
There was quite a long queue of people too, it was a bit weird. The next customer said something about it, and I was a bit embarrassed and said "she probably says that to everyone she meets" (after she left)
Random kind comments can really impact you I find...
Going back to the OP though, No, I've never encountered angels