Nobody turn on the hot water. Former "Star Trek: The Next Generation" Capt. Jean-Luc Picard, aka actor Patrick Stewart, dressed up for Halloween as a lobster, and tweeted a photo of himself waving his pincers while inside a bathtub.
Stewart's fans were hungry to share -- in just a few minutes, the photo was retweeted more than 30,000 times.
And the fan comments were worth the price of admission.
See more stars in costume in our slideshow.