I give you... THE SHIN-BURGER 9000!
Okay, so the real name of that pedal isn't the Shin-Burger 9000. It's the much less compelling Wellgo MG-4A. But as you can see by the beckoning, fang-like Pins of Gore, it really deserves a grisly moniker. I have no idea why I had a pair of these kicking around my parts boxes. Frankly, they scare me. If -- through some bizarre flailing -- your foot gets loose from these babies, just hit the eject button, get yourself well clear of the vehicle, and abort the mission. Otherwise, they will draw blood. A lot of it. From you, from innocent bystanders, from a stone, you name it.
By the way, the definition of marital trust? I used to have these on my end of the tandem, where it was my (lovely, wonderful) spouse who held the power of life and death at every stop. If she'd ever spun those things backwards when my stance wasn't quite wide enough, I would have needed a Camelbak full of A-positive.
On the upside, MG-4As (a.k.a. Shin-Burger 9000s) are pretty cheap (like $20), freakishly, you-canna-change-the-laws-of-physics-Jim light, and (at least on mine) the bearings spin like they came out of some Campagnolo Skunk Works laboratory.
So, there you have it: Good pedals, though not for hemophiliacs or the faint of heart.