If say for example you check the current crop of 'Rolf' jokes on "Sickipedia" -

It's surely wise to distiguish those that cleverly mock & deride the person and reputation of celebrity icon Harris,
in the time honoured tradition of public pillorying of fallen notable personalities:

and those jokes that are just stupid, nasty, and cretinously immature
that spare no compassion for the innocent victims.