and that invitation is referenced on the inside.

This part of Mexico is "lucky" to have plenty of above ground water. Yet many towns, including the one I'm in have no reliable source of water, no treatment plants for producing potable water, and no waste water treatment plants.  We bath in (clean looking and smelling) water from shallow wells and drink and cook with purified bottled water.  The town government says it doesn't have the resources to pipe in water from the abundant nearby rivers much less to purify it and treat waste.  Unbelievable as this sounds, the Mexican government is pumping millions of dollars worth of oil from the ground here every day and contaminating the ground and its water while Northern Mexico is parched from lack of any water at all.  

I can swear there ain't no heaven but I pray there ain't no hell. _ Blood Sweat & Tears