Federal legal tender laws in the United States do not require that private businesses, persons, or organizations accept cash for payment, though it must be treated as valid payment for debts when tendered to a creditor.[1]
Adidas is not an acronym for "All day I dream about sports", "All day I dream about soccer", or "All day I dream about sex". The company was named after its founder Adolf "Adi" Dassler in 1949. The earliest publication found of the latter backronym was in 1978, as a joke.[2][3]
The letters "AR" in AR-15 stand for "ArmaLite Rifle", reflecting the company (ArmaLite) that originally manufactured the weapon. They do not stand for "assault rifle".[4][5]