During Sunday's Sioux City Explorers vs Lincoln Saltdogs game in the American Association, Explorers manager Steve Montgomery argued a play at first base, earning an ejection from 1B Umpire Roberto Pattison. After the ejection, Montgomery picked up first base and carried the bag to the left field corner, where a fan signed the base. Then, Montgomery walked into the stands in left-center field and gave the base to a child, before walking off, presumably toward the clubhouse.
Video as follows:
Alternate Link: Managers throw temper tantrums that end with both skippers going into the stands