The best “I told you so”s are the ones where you never have to say “I told you so” because the other person clearly knows you told them so
Not actually a shower thought; this occurred while waiting in line to cross the border from Canada back to the US. In fact, I had a double “I told you so” for my wife in that line, and she clearly knew it. The past 3 years we’ve visited my wife’s parents over the holidays but I’ve always said I want to get back across the border before New Year’s Day in part because traffic would be better, but this year with the dates she convinced me and insisted we never have to wait at Champlain so it would be fine. As we approached the border and message signs announced waits exceeding an hour I had my first one. Then as we were waiting in line I noticed there was basically no line for the NEXUS lane, which I’ve been pushing for years but she felt we didn’t need because the application sounded complicated and “we never have to wait” at border crossings.
Normally, you just drive through without thinking about it. Later, you realize from the traffic signs that you must already be in the other country, and you missed the border again.