Adventures in House-sitting

Isn't it fun when you are house-sitting and a loudish noise wakes you up at 3:47am and you don't know what it is and you aren't in your house so you freeze waiting to hear if it's a robber, but don't hear anything, but can't fall back asleep so you lay there suddenly hearing a clock ticking in the room you've never noticed before so of course you think it's the Clockwork Men from Doctor Who 'Girl in the Fireplace' and both simultaneously are frightened and yet pleased this might mean you are as accomplished as Madame de Pompadour. The neighbor's dog is barking outside so you go back to thinking maybe there's a robber which is still not helping you go back to sleep. Then your alarm goes off at 4:27am to go to the gym and you realize it's going to be a very long day. 
Or is that just me? 

PS-turned out it was the shampoo bottle inexplicably falling from the side of the bathtub onto the floor.