sound

Some of the most familiar sounds are also the most annoying.

As far as marketable skills go, this is dubious. That said, a good horn impression would be the perfect thing to do if someone's obliviously standing in your way. Now just imagine hearing this a foot behind you while walking down the sidewalk.

This bar code reader is connected to a a speaker rather than a cash register, and scanning different bar codes generates different sounds. It sounds like it makes good impromptu techno. Pretty cool.

Dear god it sounds like old world folk music mixed with animal abuse. If you couldn't nail down the tune, this hold music is actually shittyflute's rendition of Britney Spears' "Toxic"

This is not the response you'd expect from staring into a recently flushed toilet. Definitely not the worst. Imagine having your daily toilet use punctuated by a wailing Chewy. It might be fun once or twice, but after a while you might wanna get that fixed.

This right here. This is the kind of stuff that we like to see. Yes. Bravo. Thank you internet gods for bestowing something so wonderfully brilliant and idiotic at the same time. Yes. The drum solo you least expect. Phenomenal.

Apparently it's a mating related noise, but that doesn't make it any less weird. 

Via Washington Post:

At a certain frequency, the sound waves "separate the oxygen [in the fire] from the fuel. The pressure wave is going back and forth, and that agitates where the air is. That specific space is enough to keep the fire from reigniting."