Max, I bought this old tahoe from an old geezer like me...he had deer whistles on the bumpers 'cause he had hit a deer before and said he hadn't hit one since....I laughed, and a few weeks later, while cleaning and detailing this old "hoe", I took the whistles off. Yes sir, I hit a deer the next day, no damage, I just grazed her, but it was kind of funny...as my wife looks at me with those, I told you so , eyes....lol