Edmonton Eskimo head coach Jason Maas tore a strip off his special teams coordinator on national television on Saturday night.

With just under three minutes to play in the first half and the Eskimos backed up on their own five, punter Hugh O’Neill took a safety to give the B.C. Lions two points and the ball back. After the play, TSN cameras showed Maas going full snap show on special teams coordinator Cory McDiarmid.

This is McDiarmid’s second season with Maas in Edmonton and he’s spent more than a dozen seasons in the CFL, including stints with Saskatchewan and Winnipeg. In other words, this isn’t his first rodeo. This is just speculation but it seems likely that Maas was unhappy about giving up points and the ball that late in the half and the Lions did, in fact, score a touchdown on the ensuing possession, turning a 12-3 Edmonton lead into a tie game at the half. The Esks would ultimately win 35-29 in overtime.

This is hardly the first time Maas has lost his temper on the sidelines, though his anger is usually directed at inanimate objects like headsets. Dressing down a veteran CFL assistant is something altogether different.