This has never happened to me before, ever. But I just got a theory on why it is happening to you guys. c00l I know speaks Hebrew in his country. Maybe, he has a keyboard that types those characters, and sometimes when making a LUA script, one of the english characters he types on there is a bit different and thus, LUA interprets it differently?
This is really only the only theory I have now.
I've never experienced this problem myself and it just sounds ridiculous...