Mea Culpa. Was a bit overhasty and also did not think about $target, which is the best way to detect onotices, no doubt.
Also, I wanted the @-prefix to separate regular notices / onotices by halting and re-formatting only onotices. Regular notices sent by another op did not trigger, but my code would become a mess regarding other on notice - events... thx for your emendation, I did not refresh the page to see your first, and sufficient reply.