I have my spam filter set to such draconian levels I don't get those.
It's kind of self defeating, though. Legitimate emails often end up in the spam bin, so I have to check through it from time to time to see if there is anything serious in there by mistake. Then i see all those weird subject lines. I've never opened on of 'them'. Too afraid of viruses and not interested enough in "Barnyard Babes XXX".

Friends don't let friends use booleans.