Only if you're pronouncing it the same as
Isla. Otherwise I don't think there would be any issues - apart from the inevitable occasional mishearing of course, but that happens to everyone at some point.
LISTEN TO THE MUSTN'TS
-
Shel Silverstein
Listen to the MUSTN'TS, child,
Listen to the DON'TS
Listen to the SHOULDN'TS
The IMPOSSIBLES, the WON'TS
Listen to the NEVER HAVES
Then listen close to me—
Anything can happen, child,
ANYTHING can be.