A pantry kimchi explosion? Seriously?

Hardest setting is the only one I'm qualified for.

Ignore that advice at your own risk. Old wiring is a fire waiting to happen, not just a simple annoyance. A loose bulb is one thing, but constant flickering can mean bad connections inside your walls that get hot. Putting off an inspection because you might "cause problems" is how small issues become house fires. Would you really bet your home on a guess from someone who hasn't seen the wires?