The best thing to teach someone a " lesson " is to pack it in a song like Timon and Pumbaa did.
Here are the phrases they sing:

"Hakuna Matata"
Music by Elton John, lyrics by Tim Rice
Performed by Nathan Lane, Ernie Sabella, Jason Weaver, and Joseph Williams

• Timon
• Pumbaa
• Both
• All
• Simba

Hakuna Matata!
What a wonderful phrase
Hakuna Matata!
Ain't no passing craze

It means no worries
For the rest of your days
It's our problem-free philosophy
Hakuna Matata!

Why, when he was a young warthog...
        When I was a young wart hoooog!
Very nice.
        Thanks!
He found his aroma lacked a certain appeal
He could clear the savannah after every meal
         I'm a sensitive soul, though I seem thick-skinned
         And it hurt that my friends never stood downwind
         And oh, the shame
(He was ashamed!)
         Thoughta changin' my name
(Oh, what's in a name?)
         And I got downhearted
(How did you feel?)
         Ev'rytime that I...
Pumbaa! Not in front of the kids!
         Oh... sorry.

Hakuna Matata!
What a wonderful phrase
Hakuna Matata!
Ain't no passing craze
It means no worries
For the rest of your days
         Yeah, sing it, kid!
It's our problem-free
philosophy...
Hakuna Matata!

Hakuna matata
[Repeats]

It means no worries
For the rest of your days.
It's our problem-free philosophy
Hakuna Matata
[Repeats]

After a short time the young lion understands and joins Timon and Pumbaa and sing (the pic above).