Warnings or dangers Solo caballeros

Leaving Mérida to Uxmal, we stopped in a restaurant with two different spaces. No, it was not smokers or nonsmokers, it was “only men” and common area. 
It was the only time that I saw that kind of segregation in America, and found it so funny, that… I had a severe distraction. My son Tito ate a salad, and, in the next morning he was over 40º, forcing me to invade a doctor’s house at 7AM, after driving almost 20 km searching for a not existent hospital. 
Two days later he was better, but the “exclusivo caballeros” kept connected to the only situation of “Moctezuma’s revenge” in our family.