During the recession I had multiple jobs where I was competing with day laborers for a position and the only thing that kept me working was the amount of tools I owned and the fact that I spoke English. Oh, and I literally ran where ever I was going and did everything faster than everybody else. When I inevitably got hurt I pretended like I wasn't hurt. I was making $10/hr (and living in Los Angeles, which is expensive) and I remember taking bags of change to buy dinner at the gas station very vividly. When my power tools broke I bought new ones instead of paying for things like electricity. When I got off work I went to my other job with a second contractor doing almost exclusively demo work. After concrete, framing, drywall, etc. (all fast-paced new construction) for 8 hours I would spend the next 4 hours or so ripping up carpet, tile, sinks, showers, etc. The only reason I was blessed with this job was again because I spoke English and I could direct the laborers the contractor would pick up at home depot while he went home and ate dinner with his family.
Eventually I moved up and they realized I was actually worth paying more, but that's what I had to do just to get my foot in the door and it lasted for months. A lot of people don't understand that this is what 'trade' jobs are like for the majority of people in this country. Most people aren't lucky enough to be represented by a union that fights for their salaries, benefits, working conditions, etc. A lot of people who go straight into the trades working for large commercial contractors, unions, etc. have no clue what it's like to have 0 rights or representation. How people act, not learning enough, or having to do work that is 'below you' is absolutely the last thing on your mind when your boss can tell you to go home any day of the week for no reason. Maybe he just found somebody who can do the same work for $9 an hour.
That's what I think about when I'm feeling ungrateful, and I'm not even in the union yet- I'm still in the process of applying. I'd sweep floors and dig ditches for the next 5 years if it meant my family got benefits and I were in the union afterward. Dudes can say whatever they want, call me names, spit on me, and it would be 10x better than most jobs I've done. 8 hours is nothing.