Imagine ending a coach's career by hiding in a pie van and watching his team's every move on the training track.

Dave Dunbar, the most daring of the AFL's former master spies, has chuckled that he did just that.

"It was pretty much the end of Terry Wallace (as Richmond coach)," Dunbar told Zero Hanger's Hangin' Out podcast.

Spying for Melbourne ahead of a Tigers clash with the Demons, Dunbar headed to the special session at Victoria Park.

"I was hiding in an old pie van. It'd gotten to Victoria Park about an hour and a half before they started training," Dunbar said.

"This was a really important game for us."

Richmond staffer John Vickery had the role of flushing out spies and was patrolling the outer. Dunbar hid quietly amid the dust in the pie van.

"I could see him hunting the whole of Victoria Park. He's come near the pie van and I thought if he (Vickery) opens the door here ... I see a shadow go past.

"The best thing is Richmond lined up and they were doing some full ground work with just their senior team.

"I was able to get the lineup and go back to the Junction Oval (Melbourne's base) on the Friday and put the team on the board and tell them how they'd line up.

"Troy Simmonds had a crook knee, Ben Cousins was coming back from a hamstring and wasn't going to play ... we got really intel.

"We gave Richmond a fix up and that was sort of the end of Terry Wallace."  

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