That’s no way to treat a fellow comrade.

(AFP) — Cuban revolutionary leader Fidel Castro has mocked the idea that US President Barack Obama could wear a “guayabera” shirt at an upcoming Americas summit in Colombia, while opposing Cuba’s presence at the event.

News reports have said a noted Colombian designer is making a series of guayaberas for Obama to wear at the summit of the Americas in Cartagena, April 14-15.

Castro, whose brother Raul formally succeeded him as president in 2008, offered a history lesson on the origins of the light, tropical shirt, asserting that it was created in an area of Cuba that is watered by the Yayabo River.

“That’s why they were originally called yayaberas,” he wrote in an article published in the Cuban press.

Other accounts say the shirt’s name may have come from the guayabas, or guavas, that could be carried in the large pockets that are sewn into the shirt’s pleated front.

“What’s curious, dear readers, is that Cuba is forbidden from attending this meeting, but not the guayaberas. Who can stop laughing?” Castro said.