Jeez. So much hate on Nexus...
It's a sass-bot. It's [i]supposed[/i] to smash your chair with it's bot-butt for telling it to do silly things like sit in it. 
xD

For a bureaucrat, Roland's seems to lack foresight. That or he's just racist against beep-boops by expecting them to be wholly subservient and versatile to his whim...like a wrench or hammer.