- Sinais

Aqui vão algumas intruções que dão que pensar sobre a inteligência das pessoas:

"Warning: May cause drowsiness." -- On a bottle of Nytol, a brand of sleeping pills.
"Do not attempt to stop the blade with your hand." -- In the manual for a Swedish chainsaw.
"Remove plastic before eating." -- On the wrapper of a Fruit Roll-Up snack.
"Fragile. Do not drop." -- Posted on a Boeing 757
"Warning: Misuse may cause injury or death." -- Stamped on the metal barrel of a .22 caliber rifle.
"Malfunction: Too less water." -- A notice left on a coffee machine.
"Warning: This product can burn eyes." -- On a curling iron (rolos de cabelo).
"Do not use orally after using rectally." -- In the instructions for an electric thermometer.
"Caution: This is not a safety protective device." -- On a plastic toy helmet used as a container for popcorn.