Bump to the head
It appears to be someone who was in the ideal location at the perfect moment. Unless this guy also works as a wrecking ball and forgot to tell his buddies. Someone had to learn the hard way that their vehicle was too tall for the tunnel, we suppose.
However, one person’s misery is another’s comedy. Being a comedy genius is one of many things to rejoice about as a tall individual. This is a talent that only the fortunate few can boast.