They are illegal as all hell....add to the fact that they scare the living SHIT out of people who are not expecting them, and you also are libel for the results. Yes, you can and SHOULD be sued for whatever happens. I can just imagine one of you losers running out to the river, you come up on a car doing 55-, maybe 60, and you lay into that thing....turns out its grandma and grandpa heading out to visit the grandkids for the weekend..but you can't tell the difff.....so you light them up with your horn...you startle the old man so bad he loses control of the car, rolles it a few times, kills them both. Good for you , dipshit. this whole thing of putting them on cars and trucks has GOT to be cracked down on, you LE guys listening?? Train horns are not toys, but using them for your fun is just as dumb as it gets.....
I have one and I use it for truck drivers that cant stay in there fawkin lane.. Ill be damn if Im gonna have them hit me or my boat....