Maybe Bloomberg had never taken a slice of pizza from a box before. If someone always serves your pizza on a plate and you eat it with a fork, you might not know how to take a slice from a box. The licking of his fingers (no linen napkin?) and then touching the other boxes is really gross at any time. Doing it at this time of super-heightened awareness about spreading disease, it is really disgusting. Bloomberg must be a completely self-centered person.
Maybe someone told him the lowly people lick their fingers so he thought they’d vote for him if he acts like they do.