If I haven't fired you yet, it's because I'm still firing your mom in bed.
"Attention, people of Earth!"
They'll be expecting me to continue, unaware of the fact that I just wasted my sentence. They'll be baffled for weeks, never knowing if I'll continue or not.
Or, "Please, everybody raise your hands up and lend me your energy so that I can defeat Majin Buu!"
[Edited on 12.06.2012 7:10 PM PST]