That's an awful lot of investment to put into being surprised.
You could just get somebody to hide in a cupboard and jump out at you.
(
_Felix 's school of dance and occult sciences,
Fri 10 Jul 2009, 21:51,
archived)
I stared at that cupboard for three days!
(
riverghost servicing your mum since,
Fri 10 Jul 2009, 21:51,
archived)