okay, so in the grand scheme of things, nobody is gonna notice 1 port scan.
run a thousand port scans, somebody might, and will probably send you an emal telling you that you might have a virus.
run another few thousand or more, and then ntl *might* get a bit interested. and you would probably have turned into a script kiddie by then.
Not The Kind Of Thing You Should Be Doingââ€Æ¦Ã‚¾Ãƒâ€šÃ‚¢ anyway