Just blowing off steam?

My kids are watching a Thomas and Friends video while I clean and there was something I just had to post about.  New as I am to the Thomas universe, I know that there is a cadre of train engines that have various tasks to complete together or alone, and there's always a good character lesson.

This episode was about Emily, who wanted to learn how to blow her whistle.  She thought it would be easy to do and easy to learn.  The other engines chided her, and warned her that it took a lot of energy.

Okay, show's over, so quick to the punchline: the other engines warned her that "twitters and tweets take a lot of energy." A pun for our times!  It takes a lot of energy to keep chugging away.