When the fifth Crosby answer was given, a female customer was asked which other NHL player also came from Cole Harbour.
"Oh, the guy who just got drafted a year ago. His last name starts with an M."
"Yes! Thank you so much," MacKinnon told the customer over the speaker.
Almost three years later, MacKinnon, now 22, laughs over the exchange.
"Hanging around Sid, it's easy to get overlooked," he said.
Not so much anymore.
Heading into the 2018 Honda NHL All-Star Game at Amalie Arena in Tampa on Sunday (3:30 p.m. ET; NBC, CBC, SN, TVA Sports), the Colorado Avalanche forward is playing some of the best hockey of his NHL career and being mentioned as a potential Hart Trophy candidate.
Perhaps the least surprised person when it comes to MacKinnon's play Crosby.
Crosby, 30, has known for years how high MacKinnon's ceiling was. The two are close friends. They come from the same town and attended the same school, Shattuck-St. Mary's in Faribault, Minnesota.