While checking out of a Chedraui supermarket near Playa del Carmen, a little boy (he looked about 10) started helping us bag the groceries. We were really confused as to whether he was an employee there or if we were supposed to tip. We didn't tip and now I feel bad because I just read a Newsweek article that they are unpaid. Apparently, this is pretty common in Mexico.
http://www.msnbc.msn.com/id/20056614/site/newsweek/?rf=nwnewsletter
http://www.msnbc.msn.com/id/20056614/site/newsweek/?rf=nwnewsletter