My best research efforts indicate the "clunking" sound you describe can come from many sources.. most of which are generated by impacts to your skull by voluntary/involuntary actions.
Voluntary actions that involve banging your head against the nearest available wall of Rockwell45 or better construction include;...
Teenagers of either gender in your house,
Filling the fuel tank of an Ford F350,
Being employed by an Italian owned company,
Owning a "Small Business" of any kind in the current regieme,
Having Nieces, Nephews, and a GrandDaughter that think 2s gas, 22LR ammo, and fireworks are free forever,
The State of Kansas, in F'n Corporated......
Being within earshot of Dan when the scoring antennea or the laptops are being cranky.
Owning anything with the words "Tier 4 Emissions Compliant" on the title.
Involuntary actions that result in banging your head against an immovable surface to produce some type of "clunking" sound include;..
Hedge,
Locust,
Oak,
first pinch point into the woods,
second pinch point into the woods,
In Kansas, the concrete-like ground,
In Missouri, the reasonably soft rocks,
In Oklahoma, the IntraState Highway system,
In Arkansas, the well mapped trail system,
Pitting next to Lederhouse,
Got any of these, Dennis?
Whoop!
Tim
#785