At several jobs I've had a colleague that I had to work with who liked to argue over pointless things. It can be very frustrating and time consuming and is never productive, and usually is only tangentially related to work (if at all). How do I talk to this type of individual? I have tried only speaking to them about work related mater but they seem to be experts at going on tangents (for example I ask them to sign a paper and they start talking about how they can't use the pen I hand them because it's the type that doesn't work well).