Translation of meanness in Spanish

My family is doing well except for my youngest daughter. She is a little ill and needs to visit many doctors. She has had several infections lately, but nothing dangerous, so we are not too worried.
There were too many of these children and they were determined to sell us a can of Coca Cola. All means were legitimate, even shaking our boat, so that we would be scared of falling into the water.
All taxi drivers recommended that we stay in the hotel, watch TV, refrain from physical effort and drink Mate tea in order to get used to the altitude. We made the mistake and didn't listen to them