Me: "Boomslang! Boomslang!"
RX: "Actually, it's pronounced 'boomslahng'."
Me: "Yes, but that's not as fun to say. Plus, it's pronounced 'Nee-ha-RAH-ghwa', but we say 'Nicaragua'. And it's pronounced 'Deutschland', and we say 'Germany'."
RX: "...and it's pronounced 'Fran-swah' but we say..."
RX: "We do not say Frank-case."
*Firefox's spell-checker doesn't know 'Deutschland'. "Did you mean 'Sudetenland'?" it offers as a possible alternative just dripping with historical irony.