[naraniano]

None, because nobody hates lighting bulbs or metro card readers, while every driver hates speed bumps.

Well, maybe not all drivers, but one driver who hates that damn speed bump that he has to drive over every day is enough to make that baby bleed. :)

I'm just being realistic. I've lived in an impoverished area all of my life and I know how things here work. I'm saying what I honestly believe would happen with these.

[tempestn]

You might be right that they'd be vandalized. I expect you're getting down votes largely for suggesting you'd do it yourself.

[naraniano]

What I meant, although I guess it wasn't clear, is that from my own experience a vandal is many times not what you expect him to be. Sometimes, he's some guy with glasses who posts on Hacker News. And sometimes, that vandal is not a he, but a she. I've seen it all. :)

[nils-m-holm]

I really appreciate the brutal honesty of your initial comment! Of course there is a vandal in every single one of us and those who say otherwise (or downvote) are in denial.

[tempestn]

That may be true of many, but certainly not everyone. I find most vandalism to be pretty morally reprehensible, since it does damage to another person or to society as a whole, for no benefit besides momentary enjoyment. I have significantly more compassion for a thief than a vandal. (Of course, these feelings would be somewhat proportional to the degree of damage caused.)