There's a great security item for travelers, a little door jam u can put under the knob with rubber on the bottom of the device, and it works perfect. Aint NO ONE getting through that front door. I think I brought it to the RIU once or twice when word had spread of break-ins -- though I was greatly ridiculed about it on another board, it provided comfort and ease.

Not sure about the sliding glass door situation ..... Some hotels are safer than others, of course; Mike, the security at Bar B Barn, said no one ever breaks in there -- he said I didn't even have to bother with using the safe!