When the person is speaking in a language you don't understand.
I gave up trying to read my book altogether this morning because the frenzied phone call this woman was having kept interrupting my concentration.
She was also pissing off the people around her trying to sleep.
Actually, I prefer foreign-language one-sides conversations, because then I can tune it out as random noise. English conversations I can't help but listen to and have my barin attempt to process.
ReplyDelete(Before I moved to Ontario, I lived in a very multi-cultural city - to the extent that it was surprising if conversations on the bus were in English...)