I just fucking rage quit SSMS...
Was trying to call a long named stored procedure and started typing the name when suddenly, autocomplete pops up with the name of the procedure.
I'm like hell yeah, I press tab to complete it, it appends the name to what I already wrote...
I delete it, start writing again, pops up again, I press down to select it and press enter, it appends it again.
*Ragequit*
Who the fuck QA'd that?