One day Srimati Radharani was churning curd for Krsna. At that time the jeweled bangles on Her hands were circling around, and She was also chanting the holy name of Krsna. All of a sudden She thought, “I am chanting the holy name of Krsna, and My superiors—My mother-in-law and My sister-in-law—may hear Me!” By this thought Radharani became overanxious. This is an instance of feeling guilty because of devotion to Krsna.

From The Nectar of Devotion, by Srila Prabhupada