Strange grave spotting behaviour, erm what?!

So, I know the girl who sits next to me is a little strange (in a good way most of the time) but I am very concerned by her lunch time activity today......wait for it......she's gone with a fellow colleague to look at a near by grave yard and has taken her camera for them to take photos, erm what?!!! Excuse me. Why would anyone do this? Should I be concerned? Is she planning to take a more permanent visit? What is the no. for Samaritans? She actually said 'oh but it's a really beautiful one' from which I, very cleverly, deduct that she does this regularly. Very strange, very strange indeed. Just thought I'd share, no no, no need to thank me ; )