I randomly took a closer look at the bridge of my electric guitar and noticed that the brass saddles have some weird, flat, slanted surfaces where the strings run over them.
Interestingly, these surfaces are facing in the opposite direction, so not every string runs over them in the same way - some lie flat on the surface, others run right across the sharp edge. Also, the middle saddle is a completely different part (meaning you can't rotate it to look like the other two). Nothing of this seems random, and I suppose it must have a clear purpose of some kind. Anybody knows what it could be?