Don't Spock that $5 bill in your wallet!

According to the Bank of Canada, it's not illegal to Spock the image of Sir Wilfred Laurier on a $5 bill.

But still, the central bank is encouraging Canadians to resist defacing its notes to honour Leonard Nimoy, who played the second-in-command on the U.S.S. Enterprise.

This is "inappropriate" as these bills are "a symbol of our country and a source of national pride", according to a Bank of Canada flack's email to CTV.

The message from the central bank stands in contrast to the Royal Canadian Mint sending a legal warning in 2009 to the Dogwood Initiative when it had planned to place "no tanker" messages on loonies.

Back then, the environmental group was told this was illegal under Section 11 of the Currency Act.

Nimoy's funeral was held yesterday.

In other news, William Shatner, who starred as Captain James Kirk in Star Trek, failed to show up for Nimoy's service.

It's earned Shatner a new name: Captain Jerk.

By the way, Shatner approves defacing Canadian bills to honour his former costar.

In fact, he tweeted, it warms his heart.