Now I remember why I don't due.

I avoid duo because I already don't like letting myself down. Adding more people to that doesn't help.

You get all kinds of fancy theorycraft bot duos down here in low elo.

Some of my favorites:

Thresh/Blitzcrank Singed/Volibear Sion/Nunu

I see the theory behind why these pairings could work, but based on the results I have to wonder if any of these people bothered to practice in normals before jumping into ranked.

Toxic duos are the best duos.

Heimerdinger / Fiddlesticks Heimerdinger / Sion Heimerdinger / [insert random champion to guarantee grenade to the face]