How weird would it be going from day-to-day speaking your native language with an Italian accent, even though you’ve never set foot in Italy. 
As the mangia-cakes over at United-Academics.org report, it can happen.
This rare medical condition is known as the Foreign Accent Syndrome. When suffering a brain injury, such as a stroke, the speech center of the brain can get affected. As a result, a speech impediment can occur that may cause a patient to pronounce his or her native language with an accent that to the ear of the listeners may be mistaken as foreign.
Watch the video below to hear the speech of a woman suffering from the Foreign Accent Syndrome.
Per la miseria!
Mariën, P, Verhoeven, J, Wackenier, P, Engelborghs, S, & De Deyn, P (2009). Foreign accent syndrome as a developmental motor speech disorder Cortex, 45 (9), 870-878 DOI: 10.1016/j.cortex.2008.10.010
 It wouldn’t have been weird for me since I grew up with everyone around me speaking with Italian accents. If anything, I’d have blended in better!
 N.B: The Italian alphabet does not have the letter ‘k’ (or the letters j, w, x or y, for that matter). Maybe that explains the abysmally bad accent.