I moved to a different computer when the OC OBSESSIVE COMPULSIVE guy ...

I moved to a different computer when the OC OBSESSIVE COMPULSIVE  guy ...

Sat down next to me at the PV Library. I've been next to him before and about every 5 minutes he wrings his hands and rubs them back & forth with a big flourish. VERY DISTRACTING. I would like to yell STOP THAT! but that would be mean, right?