I didn't know there was a worst and best swear words. A swear word is a swear word.
I thought "G*d d*mn" or some such version was the worst of swearings.
BTW, using the word "Never" has a funny way of backfiring.
I think that may be a matter of opinion. I’m not a fool, of course I know that you should “never say never”. But that saying is a human invention too. There are many Biblical instances where people said it or implied it and God had other plans.
Now, I fully commit to you today that if I am ever photographed smiling, right behind a sign similar to that, I will post it here and reveal my identity. Fair enough?