On Monday’s July 7, episode of “The Tonight Show,” Jimmy Fallon once again reminded us that sometimes good advice for one person is bad advice for another, and he really taught us a lot.

We learned that when it comes to mistakes, sometimes you just need to let it go …

That on occasion things should be taken literally …

And, of course, how to do that classic ’60s dance, “Shake the Hamster.”

Enjoy.