using an internet e-cat --- need to log out when done ?

Received a note from DNS ( starters and alternators ) reminding us that we need to LOG OUT when done with their internet e-cat. Hold on - that can be a problem ... I for one rarely have developed a habit of doing this other that on important sites --like internet banking.

But - if you can remember -- try to log-out when you are done. I have to assume that closing the window is the same as logging out. We have e-mailed question to DNS.