Question: In the majority of the episodes, whenever one of Howard's friends, or he himself, knocks on his front door his mother yells out, "Is that a sex criminal" or something along those lines. Is that referencing anything in particular?
Russel
19th Jun 2012
Chosen answer: I can only recall one episode where this happens more than once. Perhaps there are others episodes where this line is spoken but this does not occur enough times to be a specific reference or a regular on-going theme.
XIII