A primary school teacher asks one of her students, “Dave, what do you want to be when you grow up?”
“A plumber, miss,” replies Dave proudly.
The teacher laughs, “But you don’t know what a plumber does! And will you be able to carry all the heavy tools?”
Dave replies, “Yes miss, I visited some websites that showed me exactly what a plumber does. They even gave me tips on how to become really strong in just four weeks!”