Eye of the tiger

Since when are invitations based on how well you know someone's favorite karaoke song?

Since when do two-year-old babies say, "Stop it! You're giving me a headache." and "Leave me alone, Daddy."?

Since when are McDonald's ice cream cones 99 cents?

Today.

The song Eye of the Tiger wins me an invitation from a longtime friend, and my daughter is using the teen-ager-like idioms she shouldn't be.