Chicagoans no doubt are familiar with the outsize inflatables Fat Cat and Scabby, long used by labor organizations to publicize grievances against employers.Fat Cat is the large feline meant to mock capitalists or employers. Scabby is the big rat that ostensibly portrays non-union workers and also union members who cross or otherwise disrespect a picket line (so-called scabs).The Trump-era National Labor Relations Board, or …