A man has his hand on his head while a speaker is speaking.
A man is resting his head on his hand.
A man is at home doing drugs.
Two men are changing a cars tire's.
You may believe that such interventions will work in practice, but that's a judgment about the rules of economics.
The black male is sleeping.
A sports player lifting up his arm.
The Postal Service would probably make changes to their delivery vehicles if any changes at all.
Voths are from outer space.