He actually apologized first - never thought I'd see the day!
Tips
usage
Internet neologism (c. 2006), short for 活得久了什么都能见到 ('live long enough and you'll see anything'). Used as a standalone exclamation when something unbelievable happens. Very informal - fine in chats, avoid in formal writing.
memory
Read literally: 活 (live) + 久 (long) + 见 (see) - 'live long, see [it]'. The word order mimics English 'live to see the day'.
