Well, I think I can beat this.
When I was 20 and in a student house, the industrial type fire alarm became stuck on and remained on even when we turned off the power. The landlord was a good couple of hour’s drive away so rather than endure 120dB I decided to stick tissue in my ear.
Hours later, fire alarm stopped. Tissue didn’t want to come out. Helpful housemate suggests water to shift it. Tissue disintegrates and sticks to my ear drum. Cue six hour wait in A&E, not one but two registrars who couldn’t shift it and then them having to wake up the on call consultant ENT guy and get him in to have a look (about 4am by this point).
And I was entirely sober too.
My left ear has never been the same :-/