Written sound effects are familiar from Batman tv-series
and of course super hero cartoons
. If they are in language you're not that familiar with they may sound really funny or disturbing depending on your state of mind
For example, I found shooting sound effects in the books by Frank Miller very confusing. My ear says that no automatic gun says: "Brekkk!"
Just to give you some Finnish example, we may write "nar nar" for creaking sound.