We often have the pleasure of interviewing pilots or students. This time, we delve into what it's like to work on the ground and in the tower.   Both serving incredibly important roles towards the everyday operations of our industry, Clarence Schofield, and his father Colin, share a mutual love for aviation and an Aussie 'can-do' spirit.   Now retired, Colin shares his stories on what it was like working for Qantas as a Tug Driver, as he led aircraft to and from terminals and maintenance areas.