I suspect it is a form of subtle “ancestral tribe police”.
Throwing trivial inconveniences at offenders is a good way to hint they are out of line, avoiding:
Direct confrontation, with risk of fuss and escalation.
Posing as authority, with risk of dedication or consequences.
Goofing on the tribe policy, as such enforcing requires repeating and consensus.
Misunderstandings, as a dim offender will eventually just give up with no need to understand.
I suspect it is a form of subtle “ancestral tribe police”.
Throwing trivial inconveniences at offenders is a good way to hint they are out of line, avoiding:
Direct confrontation, with risk of fuss and escalation.
Posing as authority, with risk of dedication or consequences.
Goofing on the tribe policy, as such enforcing requires repeating and consensus.
Misunderstandings, as a dim offender will eventually just give up with no need to understand.