Once more, with FEELING!
When I was a kid, we had an old tube television that occasionally had issues. One day, it started acting up, with a bonus of visible flames behind the channel indicator! So I went to the kitchen, told my mom "the TV's on fire", and went out to play.
Later, it developed that I hadn't really succeeded in getting my message across, and the TV had continued to burn for a while. It was explained to me, that when something is important, it's not only allowed, but required to distract a busy adult and get their full attention to tell them.