bagpipes

There aren't too many sounds that are straight up unpleasant from the get-go, but steel drummers in the same vicinity as a bagpiper really hits the nail on the head. Luckily, this video is only about 18 seconds long.

If a source of noise is traveling away from you rapidly, the sound waves emitted will be further apart, causing the pitch to sound lower from your perspective. Then when it travels toward you, the sound waves will be bunched closer together and that same sound will be heard at a higher pitch. Also, if the source of that noise is bagpipes, that same noise source will also likely be wearing a kilt.

Well, Unicycler cycling in honor OF the Hobbit release, but dressed as Gandalf from hit films such as The Hobbit and The Lord of the Rings and YOU GET WHAT I'M SAYING RIGHT?

Warning: Bagpipes were never known for being quiet.

Sub-warning: This may be the most internet-y thing on the internet.