Tongue darters in general give me the creeps. Kerry had that horrible habit of the tongue darting. I noticed that Felos was doing it the other day as he described how "beautiful" Terri was and told everyone to expect this for a while longer since she wasn't nearly gone yet. - I don't know whether the tongue darting habit is just a habit, or is some nervous tic that inidicates extreme self-satisfaction with one's own importance. I'm not kidding.
I served jury duty a few years back and we put a guy away for 20 years for aggravated sexual assault. The very first thing I noticed about him was his tongue-darting. The last thing I noticed about him was his look of surprise as we walked out of the courtroom.