This problem is most likely due to a shock absorber or strut issue.
Rusty brown toilet water can be caused by iron or manganese deposits in the water supply. This can occur from corrosion in old pipes, sediment buildup in the water heater, or naturally occurring minerals in the water source. It's important to address the underlying cause to prevent further discoloration and ensure the water is safe for use.
Of what?
A worn out clutch release bearing would cause a whining sound when you put your foot on the clutch.
the strings
A hole in the muffler would cause a knocking sound in your muffler. A loose exhaust pipe can also cause a knocking noise.
You will have to be more specific. Describe this strange sound.
it was meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
I would expect any movement of matter to cause some sound.
a dining sound could be lose nuts on the exhaust
Fog?
a loose or slipping belt
I agree that there could be a risk of injury especially with bare feet. I believe the most likely incident would be to step on something such as broken glass or a rusty nail. This can cause extreme pain and in the case of a rusty nail you would also have to have a tetanus shot.