I quite agree with what Amanda has said....
When I've been away, you really dont think about other spirits that could be around you, especially if you have gone out for a good evening to relax.....
(Unless your on an Investigation of course) The the activity that can be in one house/room is totally different than that in another house/room.
e.g. Without giving to much away...on our last investigation two rooms in particular were extremely active

.....i cant believe what a fantastic night it turned out to be.....