Dangerous Minds reports:

Bank of Canada is pleading with Star Trek fans to stop “Spocking” its five dollar bills. Since Leonard Nimoy’s death, Canadian folks have been “Spocking” the hell out of the five dollar bill that features a portrait of Canada’s seventh prime minister Sir Wilfrid Laurier.

Sir Wilfrid now sports, on certain bills at least, pointy ears, the signature Vulcan haircut and eyebrows and Spock’s mantra “Live long and prosper.”

According to Bank of Canada it’s not illegal to do this but:

“…However, there are important reasons why it should not be done. Writing on a bank note may interfere with the security features and reduces its lifespan. Markings on a note may also prevent it from being accepted in a transaction. Furthermore, the Bank of Canada feels that writing and markings on bank notes are inappropriate as they are a symbol of our country and a source of national pride.”