A '''"yellow-dog contract"''' was used by an employer to prohibit an employee from joining a labor union. Employers used to require employees to sign these contracts as a condition of being hired. The [[Norris-LaGuardia Act]] banned these contracts. | A '''"yellow-dog contract"''' was used by an employer to prohibit an employee from joining a labor union. Employers used to require employees to sign these contracts as a condition of being hired. The [[Norris-LaGuardia Act]] banned these contracts. |