Bill was cooking on the stove, and Tilly was sitting beside him on the counter, as little smokes flew out of the pan.
Tilly -"BEEP! Oh, my gosh! There's a fire!"
Bill - "Oh, No, I'm just cookin'."
Tilly - "Oh, I'm sorry, are YOU a smoke detector?"
Bill - "..........."
Tilly - "Yeah, that's what I thought. BEEP!"