1 Head Death: 20th century Beefeaters killed by 17th century pirates?! This has gone on long enough! Get me Paradox on the phone!
1 Intercom: Yes, sir.
2 Head Death: Paradox, I've had it up to here with these shenanigans!
2 Phone: Ribbit.
3 Head Death: Stop causing impossible things to happen! You hear me?!
3 Phone: Ribbit.
4 Head Death: Wait... How are you even holding the phone?
4 Phone: Ribbit.
4 Head Death: Curse you...

I discovered that the Head Death's receptionist/secretary/assitant/whatever (who we've never actually seen) has almost identically coloured speech bubbles to the Head Paradox. Hopefully the font change is distinctive enough to prevent any confusion.