They also use a handicapped B for the double S = ß Tsk tsk. Silly Germans, but yes, one must not throw stones in their little glass houses. My native tongue, Danish, is also very nonsensical in differnet ways, but don't tell the Swedish that I told you that.

fun fact: V and F are literally the same mouth shape and everything, the only difference is whether you voice it or not. your throat will vibrate while saying V but stay still while saying F.