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JIM3CH...
Interesting article you posted, nice summary of static electricity. But I point out to you that in the article it says that the easiest way to create static charge is to rub two non-conducting materials together (i.e. luggage-luggage or luggage-conveyor band).
It is true that there is cosmic radiation coming in, but it is not that much. Indeed, if there was enough ionizing cosmic radiation to remove dog hairs from luggage during your flight, you would be dead.
Just to assure readers here who may have some fears of radiation while in the air, it IS true that you get hit by more cosmic rays in the upper atmosphere than you do on the ground, but the levels are still so low that the health risks are negligible, even for pilots and cabin crew.
