[Shaun]

It really shouldn't be.

I mean, sure, as a viewer it's a bit boring and predictable, but let's face it: if you were in the house and had any semblance of a gameplan and wanted to keep quiet and not make yourself an outspoken threat in face-to-face nominations, you would obviously go for easy reasons like this.

Not to mention that it's far more irritating watching housemates say "I want to leave" all the time. Just do it.