Prince Harry and Meghan Markle’s latest joke about the Royal Family: What did they do?

The couple were present for the SCSW Conference that featured Markle as a panelist discussing how the internet can affect lives on International Women’s Day called Breaking Barriers, Shaping Narratives: How Women Lead On and Off the Screen.

But afterwards they headed out to try some authentic Lone Star State food by going for a barbeque, which is where their joke at the Prince’s grandmother came from, according to Cory Rivademar speaking to PEOPLE.

Upon seeing a mural of the legendary Freddie Mercury, dressed as Queen Elizabeth II in a reference to his own band, Queen, Prince Harry joked, “We should take a picture in front of this.”

The owner of the food place, Allison Clem, replied with, “I think you are in enough trouble as it is.”