Yes, I mean look, we worry a lot more about labor productivity than we do the dollar per hour cost of labor. If we can mix that work right, If we can drive the right productivity through our BIM and pre-fabrication in the kinds of things we do to mitigate excessive labor on a job then we can win. The other thing is our union workforces are tied to CBAs, and you could argue those CBAs also set the price for the non-union labor. And the unions, by and large, I'm not going to say definitively and Mark please comment also, unions by and large have been reasonable. And I must say not all unions, but most of our local agreements have been reasonable that we're still doing PLAs which would be at a reduced rate versus the overall rate in the market, because they want to win the work. We're still finding the best people, and I've said this many times Noelle, a skilled trades person decides where they're going to work, especially one that's going to become part of your, what you would say, more permanent workforce based on a number of factors, and there are no particular order. First is, am I going to get paid every week. That sounds trivial, but more contractors go bust in good markets almost than they do in bad markets, because they overextend their working capital. The second thing they look for is, are you going to keep me safe, we can definitively say we work every day, really hard to have the best safety record in the industry, the best safety investment in the industry, and the best safety training in the industry. The third thing they care about is my supervision actually know what I'm doing, we've got great foreman, superintendents, project managers, and local company operations people and CEOs, our folks know the work. And finally, if I do a great job for you, am I going to have, carry-on work. I am I going to become part of your core team, other than a few markets in this country, we pick the labor. The unions don't pick the labor that comes to our jobs. That being said, if I can become part of a core EMCOR company team in the market. I'm going to be able to write-off in that downturn, in that local market or overall, because I'm going to have work. Mark, you got anything to add to that. I mean, you look at this all the time.