Indeedfeelsbadman. Or when you can't get an S on your main to save your life but you just got an S on a champion you never played before after buying them.
hugs
Know that feel... already took it with my 3 best champs the first week, now I'm pretty much doomed since I actually know how to play only 5-6 champs xD
I know the exact feel
though it doesn't bother me that much
Same with Teemo.
I can get S on lane Teemo and S+ on Teemo jungle but it never matters.

Cant get chests on my mains...
gets an S on support singed.
even with 20+ assists I get A's.. A+ A-..