The soap provided as a gratuity and convenience by the hotels failed to lather. In fact there were no suds or other indication that it was working at all. Most homes and many hotels do not have hot and cold running water. Usually bare wires dangle from the ceiling to this apparatus. The water temperature is adjusted by adjusting the water flow.
Brazil is a big country.
Brazil does not have the mountain flying we enjoy in the American West. This notification does not become valid until you receive a return acknowledgement. It's then necessary to carry this document aboard the aircraft during flight into or across Brazilian territory. Yes, they do check it at every tower-controlled airport, and you can't file a flight plan without it. A passport and visa are required.