Actually the things that may occur are as followed:
Dryer Lint is Burning = drag one of the adults to the workshop as you will see something red under the bench at the top. That is the extinguisher. Drag your adult to the extinguisher.
Stove is on fire = Same applies
Bathroom sink is leaking = Drag an adult to one of the workshop benches.
Kitchen sink is leaking = Same applies
Internet Router is broken = If you look at your router and the light is red instead of green, it is broken. Drag an adult to it and they will fix it.
Ants are in the kitchen = If there are ants in the kitchen DO NOT STEP ON THEM! They will not go away. Instead, there should be some brown weird funnel looking thing on the counter that looks like a bee's nest. Its actually cinnamon. drag an adult to it and they would do the rest.
