It's wrong to influence someone to do something dishonest.
Jenna's friend Anna really wanted to go on the class trip to see Harry Potter: The Cursed Child, but her ultra-religious parents thought fantasy books led to Satanism.
Jenna wants her friend to come with her to see the play.
Jenna asks Anna if any of her grandparents are saner than her parents and will sign the permission slip.
Jenna encourages her friend to let Jenna sign the permission slip instead of her parents.
Anna gets her grandmother to sign her permission slip and goes to the play with Jenna.
Jenna's teacher recognizes Jenna's handwriting and makes Anna stay behind.