It's Fun
Not many jobs allow you to 'play' with such a large variety of tools and machinery. Grinding and cutting a variety of materials with an angle grinder is a special kind of joy. Using a torch to make metal glow so bright you need eye protection, watching it melt like butter if you go too long. Hitting a stubborn nut or bolt with a hammer till it obeys your commands. Going to the areas of the building that are otherwise restricted and being able to essentially control every part of the building or a machine. That's just called Tuesday.
