I'm down with the construction remarks. And, a lot of it in the trade unions is a family deal. And yeah:
Construction workers ... their day is filled with banter, generally to relieve the tedium. That banter means making often very cruel jokes and jibes about each other. And I'm not even sure about the tedium, but it does help pass the time, in what I do, which is a very highly specialized form of construction/electrical work by another name, thin-skinned people generally don't make it to the first coffee break. You learn to give and get, it's part of the deal.
I think it's from the fact that there is so little margin for error that we have to take the work much more seriously than most people have to take their jobs, as a result we take ourselves and each other much less seriously - in that it's pretty much the reverse of academia. Even a 1% error rate is far too high, it has to be right 100% of the time. (I used to rig about 100 sound systems a year, that's flying two stacks of about a half-ton of speakers up in the air over a live crowd, even one failure would be way too much. I saw someone once dump a Midas Soundboard, opps, that a $150,000 mistake. My apprentice dropped a moving light, $14,000, so sorry.) And the work itself is often very dangerous. What's the worst that can happen at your cubicle? A paper cut? Ever year we lose a few brothers to these huge touring stages (like Madonna, U2 and the Rolling Stones use) collapsing (always when they are coming down, its far more dangerous to take them apart than it is to put them together). People have been electrocuted as we're dealing with 'power from the pole' pretty much, and its not very forgiving. And, unlike things where you can all sit down with doughnuts and org-charts and take a meeting, we don't have that luxury, this is going down tonight, one night only. It has to work right the first time. So given that level of perfect and serious, we have to be light-hearted about something, turns out that's ourselves and each other. However, just because you hear us talking like that to each other, do not presume you can walk up and talk to us like that, that would be bad. We get away with it because we often have to trust our lives and heath to each other, and that trust has to be absolute. Outsiders, not so much. But, once you're in, you are in like Flynn, and that is not too bad.
As much as college is pushed, I bet the average IBEW electrician, UBC carpenters, bricklayers, pipe&steam guys, and IATSE* people make more than the average college graduate ten years out. And, unlike college, you get paid to learn and don't have a huge debt load.
But: Having an opinion is..well...Just don't. That's not right, we all have opinions, matter of fact I get more opinions from a stage crew then in the faculty lounge. Matter of fact it's kind of like the old joke about if you want three opinions, just ask any two of us.
* My current boss (technical director, and most tech directors for real big-time theaters are also C-10 contractors, they have to be) has a railroad car. Not a model train set mind you, a 1935 Vista Dome club car from the Wabash Railroad. My boss before him drove a 1972 Rolls-Royce Silver Shadow, now that's a party wagon. We'd pull up to some fancy hotel or site to work, and the doormen would be out opening the door and we'd pile out in our work-clothes looking all scurffy and pull our tools out of the trunk. Great visual if nothing else.