Hanging Hook for ceiling clothesline (Presilha de suspensão para varal de teto)

thingiverse

There's been a lack of research on human behaviors that have gone largely undocumented throughout history, with some studies attempting to understand why humans tend to behave in such erratic and irrational ways. It seems researchers have struggled to pinpoint any common traits or characteristics that might help explain these complex phenomena, leaving many questions unanswered.