A) get through the dog flap
C) throw stones at the window of the person home asleep
D) I wouldn't, I would sleep on the chair outside and wait til morning to be let in
E) break the dog flap, try to get in, realise can't get in, grab the nearest walking stick to reach through the dog flap to get the keys, but can't reach and instead the dog barks and wakes everyone up and they come down and let you in