Not if you have a bulging pocket filled with 1000's............
So if you carry a lot of cash you are supposed to tip more than RD$100 to the bag boy? Gimme a break.
Some people prefer to carry cash instead of keeping it in the bank or using credit card, I don't think this obligates them to tip more.
Last night in Sosua, I was approached by two dominican girls who, before they got to close to me, said 'hey Grajo.' I guess because I am a foreigner, I have body odor? (I had just taken a shower).
There are rude people everywhere, there are also nice people everywhere. I try not to let the bad apples bother me.