The rumor weed is growing quickly as it's watered by Houston floods (see WATCH: Harvey Survivor Unloads on Opportunistic CNN Reporter and CNN Anchors Laud CNN Crew for Helping Harvey Victims in an EMBARRASSING Display of Self-Congratulation…) Social media is full of fake news. And even more full of gullible people (and institutions) who believe it. Claims as wild as sharks swimming down the interstate to Obama actually caring.

1. Obama Serving Flood

Some observational Twitter users shared one definitive way to call out this lie: why would anyone in Texas wear a sweater in August?

As Larry Elder called it, the Obama photo op was from 2015 Thanksgiving. Not even close, but thanks for playing dummies.

2. Shark on the Freeway

And this photo? Total bull shark.

The photo's creator explained the motivation behind this enormously successful hoax. Trolling the news. Alas, some of the duped were none too pleased.

3. Katie Couric's Gator

Our favorite blonde journalist, who lives up to the stereotype, shared a fake photo she claimed was from a friend's neighborhood.

Turns out, not even close.

The photo was actually from Fort Bend flooding back in April.

4. Water-Logged Airliners

To finish with a bang, a doctored photo of "Houston's airport."

Notice the likes and retweets. Sure, plenty of them are for "LOL, look at this gullible moron!" but some are legit believers.

Makes sense. Airplanes aren't monuments of Abe Lincoln.

What did we miss? Leave your favorite fake news image or story in the comments!

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