R?hm had built a million-man-strong paramilitary band of street thugs, the brown-shirted Storm Troopers, or SA.

SpamAssassin, for example, provides the sa-learn script, which you can tell to identify the message as Spam or Ham, accordingly.

If it 'sa meeting at work or in school then you may need to have use a more formal frame (for instance without hugs and the relaxed attitude you have with friends).