In all honesty I'd rather see cocaine legalized over pot

[Spider Jerusalem]

118. Except I can back that up.

From firsthand experience. I know for a fact that cessation of cannabis can cause a withdrawal syndrome, because I have experienced it. It is also well-established by research; see proposed revisions for DSM-V: http://www.dsm5.org/ProposedRevisions/Pages/proposedrevision.aspx?rid=430

See also various journal articles:

Converging evidence from basic laboratory and clinical studies indicates that a withdrawal syndrome reliably follows discontinuation of chronic heavy use of cannabis or tetrahydrocannabinol. Common symptoms are primarily emotional and behavioral, although appetite change, weight loss, and physical discomfort are also frequently reported. The onset and time course of these symptoms appear similar to those of other substance withdrawal syndromes.
http://ajp.psychiatryonline.org/article.aspx?articleid=177137

Recent findings: The neurobiological basis for cannabis withdrawal has been established via discovery of an endogenous cannabinoid system, identification of cannabinoid receptors, and demonstrations of precipitated withdrawal with cannabinoid receptor antagonists. Laboratory studies have established the reliability, validity, and time course of a cannabis withdrawal syndrome and have begun to explore the effect of various medications on such withdrawal. Reports from clinical samples indicate that the syndrome is common among treatment seekers.

Summary: A clinically important withdrawal syndrome associated with cannabis dependence has been established. Additional research must determine how cannabis withdrawal affects cessation attempts and the best way to treat its symptoms.

http://journals.lww.com/co-psychiatry/Abstract/2006/05000/The_cannabis_withdrawal_syndrome.2.aspx

A subset of marijuana smokers develop a cannabis use disorder and seek treatment for their marijuana use on their own initiative. A less well-known consequence of daily, repeated marijuana use is a withdrawal syndrome, characterized by a time-dependent constellation of symptoms: irritability, anxiety, marijuana craving, decreased quality and quantity of sleep, and decreased food intake.

http://www.springerlink.com/content/r7280706u0420223/

There are lots more citations where all those came from.