Think I'm joking? Then you'd better take a closer look at what the city's municipal code has to say about necromancers:
Sec. 2-4-1. Designated amusements--License.
(a) Required. Every person exhibiting, conducting or operating any theatric or opera performance, picture show, amusement parlor, concert, circus, carnival, horse show, acrobatic performance or other show including an exhibition of natural or artificial curiosity, feats of legerdemain or necromancy shall first obtain a license.