Whistle While You Work

One morning in my parking garage, I was on my way to the shitshow and noticed a loud whistling sound coming from the area near the garbage dumpster. This strange sound sparked my curiousity so I walked to the dumpster and noticed a garbage truck with a garbage man with an iPod who was dancing and whistling while he picked up trash. I stood there in utter amazement and watched this man pick up other people's smelly garbage off the floor and dance like he was at a club and whistling like a mad man. After watching him for several minutes, I approached him and asked him the following question, "you look like youre having a great time, you must love your job" and his response literally blew my mind and has kept my up at nights. He responded "Yep, could you imagine what the city would look like if there was no garbage man" and then he started dancing again and picked up more trash and threw it in the truck. After watching this, I got in the car and went to work and was literally in shock. Upon getting to work, I got in my lab and noticed no one was whistling while they worked, in fact they all looked like they were on anti-depressants and attending a funeral. The garbage man would not approve of this!...........Several weeks later I drove to work and parked in the lot right next to a dumpster and saw another garbage truck with a different garbage man (in a different location mind you) who was dancing and whistling while he worked as he dumped trash. I mean, the first time was coincidence and now this established a trend. How could a man who dumps people's smelly waste all day and makes minimum wage whistle while he works and everyone I work with as an engineer looks like they are one bad meeting away from swan diving off the roof of the building? Questions like these keep me up at night and make me want to hand in my shitshow badge and drive a garbage truck. Because no one at the shitshow whistles while they work, I throw rocks.