Discovery Channel's Shark Week tends to annoy a lot of shark experts. The channel invents mythical sharks that don't exist (like the 35-foot "submarine shark"), distorts shark facts, and wildly exaggerates how dangerous sharks actually are to humans.

Shark Week tends to annoy a lot of shark experts

But perhaps no one finds Shark Week more exasperating than David Shiffman. Shiffman, a PhD student studying sharks at the University of Miami, has made it his personal mission over the years to expose Discovery Channel's falsehoods and distortions.

This past weekend, Shiffman decided to binge-watch all of the Shark Week shows aired in 2014 and post his thoughts on Twitter. You can see his real-time descent into madness in this Storify stream, but I've selected a few of his greatest hits below:

Watching "Monster Hammerhead" — a Discovery Channel "documentary" about a mythical 20-foot hammerhead shark named "Old Hitler."

Watching "I Escaped Jaws 2" — a segment about shark attacks

I feel for the victims of shark bites. Any human injury or death is a tragedy. But @sharkweek makes people think sharks are a threat to us — David Shiffman (@WhySharksMatter) August 23, 2014 More people are killed by cows, toasters and flower pots than by #sharks , but @sharkweek promotes fear of these misunderstood animals — David Shiffman (@WhySharksMatter) August 23, 2014 (Yes, cows are actually super dangerous. My mom was almost mauled as a child on our cousin's dairy farm) #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014 1/4 of sharks and rays are threatened with extinction, and media coverage affects public willingness to conserve them. #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014

Watching "Lair of the Mega Shark" — another pseudo-documentary about a fake shark

Next up is "lair of the mega shark". Sharks don't have lairs you guys. #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014 Oh good, another story about a legendary giant individual shark that's probably really a bunch of not quite that big sharks. #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014 You ever notice how all of these "quest for legendary giant shark" shows end without finding it? Because I've noticed. #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014 Finding sharks that are "almost 15 feet long" is awesome, does not prove the existence of 35 foot long sharks. #SharkWeek — David Shiffman (@WhySharksMatter) August 23, 2014

Watching "Sharkaggedon" — yet another segment on shark attacks

Watching "Zombie Sharks" — in which a diver flips sharks belly up and puts them in a sleep state known as "tonic immobility"

Please don't grab sharks and flip them over you guys. It's dangerous and disrespectful. #SharkWeek — David Shiffman (@WhySharksMatter) August 24, 2014 If #SharkWeek had TALKED TO A SCIENTIST instead of guessing what they thought was happening, wildlife harassment could have been avoided — David Shiffman (@WhySharksMatter) August 24, 2014 The @Discovery channel has made a conscious choice to perpetuate scientific misunderstanding in the US. Good work @SharkWeek — David Shiffman (@WhySharksMatter) August 24, 2014

Watching "Shark of Darkness" — a fake documentary about a mythical "submarine shark"

Watching "Megaladon: The New Evidence" — a segment claiming that a shark extinct for millions of years is still with us. (It isn't.)

It's worth noting that Shiffman wasn't totally negative. He had excellent things to say about the "Alien Sharks" segment, which interviewed actual scientists and looked at rare and fascinating sharks around the ocean. But that was one of the lonely exceptions here.

You can follow Shiffman on Twitter here. And Craig Pittman of the Tampa Bay Times wrote an excellent profile of Shiffman and his never-ending battle against Shark Week.