I've learned that lesson.

Me: Hey, instead of lunch lets do dinner.
Her: umm...how about lunch?
Me: Um no. I said dinner.
Her: well then fine
Me: (duct tape her thighs together)
Her: what are you doing?
Me: I said we are going to dinner bitch.
Her: I do...(me putting duct tape over her mouth)
Me: Perfect.

Thanks for the idea Hector, but I will stay with lunch for now.