Blurrrr Case

I was at McD burning midnight oil while watching Champions League, then about 4.15 am came this 2 fellas apparently students that woke up in the morning too early to study...
Then i thought, nothing special about them, just look "just-wake-up" so i ignored them...
After a while, something caught my eyes,

Did you notice something wrong???
SEE this pic,

See that? This guy is hell of a blurr until he did not realise that he was wearing 2 different slippers or is that new fashion he is bringing in...LOL