Like all men who are small boys at heart, playing around with huge diggers in mud is what we love the best. Working in this field means I get plenty of chances to tell drivers of 300 ton cranes and 10,000 ton trains where to put their stuff. Marvelous It also means having to stay up all night watching the Dartford Tunnel being repaired in -5 degrees, but some of the characters you meet on these jobs make any visit to a construction site rewarding.