Yesterday was the last day of my Pumps and Hydraulics class at the Wildfire Academy and we spent it in the field making sure everyone in the class knew how to set up a pump from scratch, operate it properly and do basic troubleshooting.
We partnered up in groups of two. My partner and I first set up a dry pump just to go through the process. There were also two pumps that would actually deliver water so each pairing would do a turn with the dry pump and then the actual wet pump.
By the time it came to our turn on the wet pump the class instructors had begun to start sabotaging the process in various ways which has very practical value in that during a wildfire all sorts of things go wrong. I was told by the instructor of my entry level class eight years ago to expect chaos on a fire so something not going right with the pump would fall well within the bounds of a white swan event on a fire.
In putting the entire assembly together there are certain connections that should be hand tight and other connections that need to be tightened with a "spanner" wrench. Tightening something with a spanner wrench requires, ahem, having a spanner wrench. Pump kits have a spanner wrench in them but the instructor took ours at some point (I think this was before we started).

The picture is of my radio harness. Aside from holding the radio there are all sorts of things that can go in the pouch (zippered across the top) like earplugs, some sort of energy bar and so on. Along the front there are pockets for various thing that I keep with me like a pocket knife and to the far left pointed to by the white pen is, you guessed it; my own spanner wrench.
There are two things here, one is that we were going to be around hoses, water and pumps all day so it seemed like a pretty good bet that at some point something would need to be tightened and then later loosened and slightly bigger picture when fighting a wildfire last thing you want is to need something and not have it; something to eat, a couple of band-aids, a couple of kleenex, some TP squares, a second pair of socks and a few other things that you can plan out to minimize bulk and weight.
Also relevant here is the concept of situational awareness. The instructor pulled the hard suction line out of the water source (hard rubber hose that connects the pump and the water source, the pump sucks that water and discharges it through the regular fire hose) which I heard him do and so I simply put back into the water (for anyone who knows this stuff it had a foot valve so I did not need to re-prime the pump). Coming into the day it never occurred to me the instructors would do this (they also jacked up the spark plug) yet I was prepared anyway. Out of 18 students I was the only one with a spanner wrench and maybe one of four with a pocket knife.
I can see all sorts of parallels to investing here. I did not expect the instructors to sabotage us--no one expected Japan to have an earthquake so big that it would move the island. As this has unfolded, the S&P 500 has dropped 3.6% since last Friday's close. In the face of that event some stocks have done ok for various reasons. Long time holding Caterpillar (CAT) is up very slightly. Recent portfolio addition Market Vectors Coal (KOL) is up 2% since Friday's close.
This, I guess, is an argument for diversification. I had not thought about this type of external shock in terms of portfolio construction but in having my full radio harness, so to speak, I feel that the volatility of the portfolio has been muted a little and hopefully that will continue to work if this continues to be a market event.
I've talked before about holdings bringing specific attributes to the portfolio or having purposes within the portfolio which is similar to the various tools at a firefighter's disposal. The broader a portfolio is constructed the fewer specific tools you have. The broadest funds make for very blunt tools. For accounts that are big enough, specialized tools seems by far the better way to go.
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