I wouldn't have thought it was a big deal until I Googled trampoline statistics....guess they are quite dangerous.More than 1 million people went to emergency departments for trampoline-related injuries between 2002 and 2011, with nearly 300,000 of those injuries involving broken bones, according to a new study.And these injuries don’t come cheap — the Journal of Pediatric Orthopaedics studyshowed that the total emergency department expenses for them was $1 billion, and more than $400 million for fractures specifically.What you really care about is making sure that they are taking the risk so just create a lease addendum that gives them permission and makes them assume liability.  

This is the time for BOLD and decisive actions.  

If someone is bold enough to steal appliances, it doesn't seem like a little ol door lock would impede them.

As the saying goes, there are lies, damn lies, and statistics. 

Does anyone have statistics to back that up?  

Another helpful website is www.city-data.com, which provides free statistics you may find useful.

One problem with a lot of the online crime maps and statistics is that they usually don't take into account the density of a neighborhood.

Can they provide you with school ratings, crime statistics, area demographics and other important metrics for analyzing a neighborhood?

The truth is that insurance companies that are in the business of statistical risk assessment refuse to insure them.  

If you're a data geek, then here's your answer:* Please remember the old adage: "There are lies, DAMN lies... and statistics."