Rule of Four

I discovered a ceramic dish packed with loose buttons sitting right in the middle of the coffee table. Pure chaotic nonsense! Unacceptable. I tipped the dish over onto the woven rug and immediately got to work establishing proper order. Everything had to be grouped into exact squares of four. Four large wooden buttons here, four shiny flat metal ones there, and four bright blue plastic ones beside them. One solitary yellow button tried to disrupt the pattern by being leftover, so I shoved it straight off into the shadow under the sofa. Problem solved!