Autistic spectrum. Won’t teach the lesson you want.
a) “Hit when angry”.
b) “Break something important when REALLY angry”.
What you did was WAY too abstract. A weird, painful art performance.
“This tablet is symbolic of my wife, who you hurt but who I love very much, the way you love your tablet, and this sledgehammer represents what you did to my wife and the pain you feel when I do destroy what you love is the pain I feel when I found out you hurt my wife, plus this tablet started the fight that made you make me do this.
The tablet did it to itself and must be destroyed”.