I think it's stupid to use a toilet when a urnal is available that's more suitable for just peeing.

But isn't it common courtesy to skip at least one urnal, when there's lots of empty urnals? Why "crowd" somebody and intentionally invade their slight privacy? But if the urnals are mostly full, then of course that the next or first available urnal.

I wouldn't want to be too close to somebody peeing. What if it slashes or sprays nearby, because the urnal angles just aren't quite right? Probably those urine troughs are better in that regard? They never splash, do they?