Now that was funny...
Not so funny... I keep spare change, pesos and US change, in one of the cupholders in my truck. Always give some to the Red Cross, occasionally to kids and such. Last trip, at the stoplight at the footbridge in Rocky Point, a kid approached me asking for money for comida. I reached into the cupholder and grabbed some miscellaneous change and put it in his cup. He reached into the cup and pulled out a couple of pennies that were with the other change I dropped in his cup. He threw them back at me through the window of my truck screaming "NO PENNIES!!!" He then took off.
I couldn't even believe it. Apparently beggars can be choosers! Little bastard...