What does Boxing Day have to do with boxing?
desensitize de·sen·si·tize (dē-sěn'sĭ-tīz')
v. de·sen·si·tized, de·sen·si·tiz·ing, de·sen·si·tiz·es
To render insensitive or less sensitive, as a nerve or tooth.
To make an individual nonreactive or insensitive to an antigen.
To make a person emotionally insensitive or unresponsive, as by long exposure or repeated shocks.