you're talking on the phone, and start getting defensive after you hear "... line noise ..."

you write oneliners while yawning during class

you chuckle every time you mention a built-in function (pop);

start adding people to your #! list

install perl on every machine you sit down (sit down at ;)), even if only for a minute

 
___crazyinsomniac_______________________________________
Disclaimer: Don't blame. It came from inside the void
perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"