Speaking of the end, I had a rather chilling conversation with my wife this morning. We were talking about leap years, and I explained to my son (also in the room) that leap years are skipped every hundred years, but not skipped every 400. 2000 was a leap year, but 1900 was not. Then:
Me: "Oooo, can't wait till 2100, cuz I've never seen a skipped leap year before!

"
Wife: "You won't see that one.

"
Me: "

"
Wife: "You won't live that long.

"
Me: "

... Uh .... Do you know something I don't know?"
Wife: "

"
Me: "Gonna watch my back, around you!"
Son: "

"