This is used to really confuse me too, but now I can't remember why, because everything's the same:

  touch <destination...>
  $EDITOR <destination...>
  mv <current...> <destination>
  cp <current...> <destination>
  scp <current...> <destination>
  mount <current> <destination>
 

The place you're putting something is last in each case; we can even include everything that doesn't modify its location.

All I can think of that breaks the rule is `rm`, `unlink`, and `umount`. But they're hardly gotchas, and they're not reversing arguments they just don't have a 'destination'.