First of all, littering is definitely uncivilized and immoral, and taking the initiative to pick up garbage is a good behavior to care for the environment. "Don't use small evils, don't use small goodness". Bend down gently and pick up not only rubbish, but also a person's accomplishment and height in just a few seconds. So it's not the overlord clause.
Overlord clause mainly refers to the unequal format contract unilaterally formulated by some operators in order to avoid legal obligations and reduce their own responsibilities. Overlord clause refers to the clause agreed by the producer or operator in the format contract that violates fairness and integrity and harms the interests of the counterpart of the format contract.