Would you surprise them at all during their stay in the ouse?

If so, what would they be?

And why would you choose that (those) particular surprise(s)?

i say surprise them by doing a mass eviction

I'd surprise Anouska with a lobotomy! What? Oh, she's had one....

Informing the housemates that Jon is in fact an alien from another planet.

Then again most of the hm's have probably already worked this one out...

You would know as you have had one too then.