If you don't design your bridge with the expectation that some yahoo may one day try to bang on the cables with a sledgehammer, you aren't doing your job as an

If you don't design your bridge with the expectation that some yahoo may one day try to bang on the cables with a sledgehammer, you aren't doing your job as an engineer. If it is possible, someone will eventually do it. But the sledgehammer thing is likely insignificant compared with a fully-loaded dump truck crashing into any particular piece of your bridge. So I trust the competence of the engineers that design suspension or cable-stayed highway bridges to the point that I would not worry about someone--or 88 different someones--trying to play one of those bridges like a piano. Or at least I wouldn't worry about the structural integrity of the bridge. I might worry about the quality of the "music".