clueless fatties

One of the biggest (pun intended) problems with huge ****kerbeasts is 
that they have almost no sense of space.  They just don't have a ****ing 
clue where they are, nor whom or what they're blocking.  This commonly 
shows up in grocery aisles.  The huge hulking lard tankers stand there 
utterly clueless to the idea that other people are there, or might be
there.

Thoughtlessness is very high on the list of offensive things about
fatties.