I will never forget that first time when these girls were puppies and the trash truck came to empty the dumpster. As soon as it started banging the dumpster to make sure it was empty - they both pissed themselves WHILE running backwards to get away from the sounds of it!
I feel fairly confident that NOW they are pretty well desensitized to pretty much anything 'sound wise'. They may perk their ears or go 'investigate' to see what it was that made the sound but there is NO fear and no running from ANY sort of sound (or frequency) that they could possibly encounter. Nope!
There are 5 sets of frequently used RR tracks behind the shop. Here lately they have been replacing the ties (the wood beams that the RR tracks rest on) on one of the sets of tracks. The machinery they have been using to do all of that work does not sound anything like what it does when a train is going down the tracks! Between the different sounds, different machines, and different people all being in such close proximity - The girls have been getting some good training here lately.
Have not measured it but guessing 10 to 20yds from the dock they like to camp out on when we are outside to the closest set of tracks? It ain't very far away and they are pretty much desensitized to any and all of that!
This particular machine they had out today was the one that came
after the old ties were removed, the new ties installed, the tracks re-positioned - and it hammered the spikes back into the new ties, securing the tracks in place.
Girls briefly 'investigated' what was going on but gave not a crap about any of it after that single minute of actually looking that way.
They are in the same general area in this picture but just pointed in the other direction because the RR stuff going on behind them is not something they are worried about.
Those girls are not tied off to anything in those pictures. (no need) What that looks like when I back up more -