Gary Dell'Abate went on "Kimmel" last night -- and he beaned an audience member in the head with a baseball -

Gary Dell'Abate went on "Kimmel" last night -- and he beaned an audience member in the head with a baseball -

Gary Dell'Abate went on "Kimmel" last night -- and finally got a chance to try to make up for that famously terrible first pitch he threw at a Mets game last year ... instead, he beaned an audience member in the head.