person A: My son knew that he wasn't suppose to bring drinks near my computer_comma_ and he didn't listen! Now he spilled water all over my gaming computer and it won't turn on.
person B: Oh no!  That would've made me so mad.  I let my kids use my computer too but always say_comma_ no drinks by it and wash your hands.  Kids always seem to forget that. 
person A: I'm not so sure if it's forgetting or just wanting to be contrary_comma_ honestly! Maybe I'm just being a little negative because of how mad I am. People do make mistakes_comma_ but that computer cost me and arm and leg to build!
person B: It is a hard balance because they need to learn and it should make you mad_comma_ but people do make mistakes.  So hard to know how to act really but things are too expensive to not treat them well.  I hope you're able to find an easier way to fix it.