Fair enough, too. The North Melbourne defender had just heard coach Brad Scott announce he would return to the Kangaroos' side on Saturday for their clash against Collingwood.
Sitting alongside Scott at a press conference at Aegis Park, Grima broke into a broad smile when Scott confirmed he was back.
Scott joked Grima had picked himself and had hijacked the press conference to make it official.
"He just walked in behind me, I thought it was a press conference by myself," Scott said.
It soon sounded like Grima had tried a similar trick before round one.
"I was pretty disappointed Brad didn't pick me last week. I was in his office every day and just harassing him," Grima said.
But just three months ago, Grima was not so cheerful. After starting the pre-season with a bulging disc in his back that limited him to walking and swimming, he was forced to have surgery when a fragment of that disc broke away, leaving him with nerve-related leg pain.
Grima was operated on on New Year's Eve and then endured a six-week recovery where he could do no training.
But in the past six weeks, Grima has made remarkable progress, playing two consecutive VFL games with North Ballarat to seal his AFL return.
With that ordeal behind him, Grima showed he had a comic side when asked about Scott's recent endorsement of him as a potential club captain.
He opened by saying all the right things. It was something he'd never considered possible, much less aspired to. Nonetheless, being spoken of that way was a "privilege" and a good sign he had what he most prized from his coach and teammates - respect.
The serious stuff over, Grima said the fact Scott's comments had made the news meant it must have been a slow news day.
It brought some laughter from the media in attendance.
But Grima was just warming up.
"I'm just saying that for the camera. I actually think I should be the new skipper," he deadpanned.
More laughter. Genuine. And louder. Scott had joined in, too.
Not done, Grima then poked fun at the man widely seen as the frontrunner for North's top job post-Brent Harvey.
"Andrew Swallow actually cried himself to sleep that night," he said.
By now everyone was in hysterics.
As routines go, it may not have cut it at the Comedy Festival, but by football media conference standards it was gold.
Back on serious football matters, Grima spoke of his excitement to be back in North's side and he is confident he's crammed enough preparation into the past six weeks.
"I've got full confidence I'm back to the level I need to be at to play. A five- or six-week pre-season is not great when the other boys have done three or four months but when I step out onto the field on Saturday there'll be no excuses.
"I'm still setting myself for a big year."
