favourite sarcastic exclamation

Bipolar boy today. Feel strangely manic and capable. Making daring plans.
Scotsified email of the day:

A linguistic professor in Canada was discussing the structure of the English language, telling his class:

“In English, a double negative forms a positive. In other languages – such as Russian – a double negative remains a negative. However, there is no language where a double positive can form a negative.”

At which a Scottish voice piped up from the back:

“Aye right!”