Worst thing you've seen an umpire do

[whiskers_ump]

Worked with an *umpire* last year, that every time he was required to
remove his mask to make a call or whatever, he would thrown it like
the catcher's do. He would also point upward on every fly ball, as though
it was an infield fly. His mask throwing got him in trouble in one
situation. He tripped over it while going back to cover a foul ball to see
if it was a catch or trap on the screen. He had to get help from his
partner. Me.