Getting to the top and realizing it's all downhill from there.
The octopus because it is well armed.
WIFE : I clean the toilet.... HUSBAND:How does that help WIFE : I use your toothbrush.
Nothing because ghosts don't exist. Edit:Holy crap I just realized I didn't post this on /r/antijokes.
The cold feeling on your lips when you realize you're kissing the mirror