What if I used my powers for evil?
I don't know. What evil did you use your power for?
I demolished a house with a hammer
Being bad, cruel or even evil makes some people feel good in the short term, but can be fleeting. With great power comes great responsibility, and you were given your powers for a responsible reason.
This is the first time I destroyed something with a hammer so don't be so upset.
Even if it is a first time, it is bad to do things for evil. The house belongs to somebody and caused a lot of pain and suffering.