- sit up
- sit down (sounds a bit conflicting, eh?
)
- stop shouting
- don't hit your brother
- stop taking toys from your brother
- stop screaming
- stop jumping on the furniture
- stop climbing
- eat your food
- sit still
- listen to me
- stop asking me that
.....

........
I'd be very very rich. 
Is it possible to have a meter installed for this? 