Last night, I had an interesting conversation with a lady from the service that sends someone to sit with my granddad.  She told me about lockboxes.  I knew about the Lifeline, which we alreadyhave, not that grandpa actually uses it, but this was something else.  She talked to me about a lockbox, similar to what realtors use when showing a house.  It keeps the key safe and available only to those who have the code.  However, since it's kept outside the door, emergency people have access to it too.  This is good, since a busted down gate and/or door would be expensive to replace.  I'm intrigued.  She's going to give me more information today.  I had no idea such a thing was even out there.