There probably are in addition to the fact that the pressure on the inside of the fuselage is too great for you to open the door against it. Almost all aircraft doors open inwards, even if they are then turned and pushed out. Even the B737 exit doors do (the handle is on a big piece of plastic that has to be pulled inwards).

So I'd quite happily get up and say "stop being such an idiot, you're worrying other passengers [who don't know the above]". No danger of being sucked out.

Neil