Something I discovered years ago is that there are whole libraries of alarm sounds. And companies like Apple have licensed many of the best known. The problem

Something I discovered years ago is that there are whole libraries of alarm sounds. And companies like Apple have licensed many of the best known. The problem occurs when you choose a phone alarm sound that is frequently used in the industry for seriously nasty things. Like frequently used in many movies for the biggest disaster that will be occurring, leaving you in a panic to turn off the sound on your phone right in the middle of the most important part of the movie. Or, you work in the central IT Services department of a major university, and you work in the building where the main computer room is located. And your alarm sound happens to be the same one as used on the floor for the halon dump fire suppression system. And you're standing at the doorway of a co-worker talking to them, when your phone alarm goes off. And their office happens to be right next to that of the datacenter manager. So far as I know, there were no heart attacks or strokes that resulted from my accidental use of the same alarm library sound that day. But I was strongly incentivized to switch my alarm sound to something else.