Summerville Police responded to a call on Saturday about a busted window on University Street.  The homeowner believed that someone had shot the window, causing it to break.  However, when a responding officer looked at the window, the hole was much larger than any bullet round.  The officer then found a rock in the floor of the residence that appeared to have been thrown at the window.  The residents at the house told the officer that they had no idea who might have done the damage, and had not been in any kind of altercations or arguments that might have contributed to the incident.  The officer said that extra patrols would be on hand for the area.