Ingenious!

From http://www.click2houston.com/news/9576872/detail.html?subid=22100412&qs=1;bp=t :

Investigators said a suspected burglar threw a rock through the front window.
The alarm is hooked up to a smoke system designed to make thieves believe the building is on fire, officials said.
No one was injured in the incident.
No arrests have been made.

If it weren't for the cleanup involved, more fun would be a foam machine with a short delay before activation.