secret society of burger sellers

has anyone ever wondered, why are there no burger stall in the morning? weird innit?its as if nobody buys burgers in the daytime.i wonder why?is it cos all the burger sellers are part of a secret underground society that forbids them to see the sunlight? or maybe all the burger sellers are vampires that fear the sun..hmmm..that'd make sense! burger sellers are actually vampires..or maybe its my overactive imagination..i dunno..wait come to think bout it, i HAVE seen burger sellers in the daytime. hmm..there you go. problem solved:)