Why does a man who bites the hand that feeds him lick the boot (see)?

A man who bites the hand that feeds him is likely trying to demonstrate his power and independence. He may feel that the person or entity providing him with sustenance is controlling or manipulating him in some way. By biting the hand that feeds him, he is attempting to assert his autonomy and demonstrate that he is not beholden to anyone else.

By licking the boot, he may be trying to demonstrate his submission and willingness to obey. He may be trying to show that he is willing to take orders and accept punishment if necessary. This can be seen as a way of appeasing the person or entity that is providing him with sustenance and demonstrating that he is not a threat. It is also a way of showing that he is willing to take responsibility for his actions and accept the consequences.