You cannot tickle a woman under the chin with a feather duster.

The Law

This bizarrely specific law dates back to a time when mischievous young men thought it was highly amusing to flirt with women by accosting them with cleaning supplies. The city of Portland struck back against this Victorian-era street harassment by banning the use of feather dusters for unwanted chin-tickling. It remains a fascinating glimpse into the polite, yet strange, courtship rituals of the past.