I’m not convinced that all of these are spurious:
Number of people who died by becoming tangled in their bedsheets
correlates with
People who died by falling out of their bed
http://www.tylervigen.com/view_correlation?id=1478
Total revenue generated by arcades (US)
correlates with
Computer science doctorates awarded (US)
http://www.tylervigen.com/view_correlation?id=97
Number people who drowned by falling into a swimming-pool
correlates with
Number of films Nicolas Cage appeared in