Dumb people are more likely to have place burglarized: GSS respondents were asked if they had been victims of a burglary in the past year.
Percent who have been burglarized
High IQ 5.1
Medium IQ 6.2
Low IQ 7.1
Yes, this is a little too simple because low IQ people live closer to burglars, while smart people probably have more to steal, etc. etc. But it's a start, and it makes sense that intelligent people can better anticipate problems and thus are more likely to take precautions like home security systems, guard dogs, careful selection of residence, etc. Nerd alert: I look at the neighborhood data before choosing a new place to live. What sensible person doesn't?