I've noticed something rather annoying since moving into my house (which is closer to the street than my old apt): Cars that use the regular full-volume horn for locking confirmation. It's downright obnoxious on some vehicles. Particularly Hondas with that full volume "MEEP!".
I much prefer the electronic beep/chirp found on Toyotas, BMWs, etc or even the muted "HONK" of a VW (except newer models which use the annoying full volume beep).
Anyone else agree? I remember my sister-in-law bringing this up that she liked the full blast beep of her old Expedition in case she lost her car in a parking lot; my thoughts were that if you forgot where you park, maybe you shouldn't be driving?