Solo's a riot. He has his own "thing" and there's no way around those "things". He goes under my desk because ... Ok. Lemme back up a bit.
Like any good Newfie, if it's comfortable for humans, it's too hot for them. And Solo, true to Newfie Fashion, thinks 60 is TOO HOT and prefers to sleep in the stair well where it's nice a breezy cool. Being that the stair is nice a breezy cool for Newfie Fashion, it's waaay to cold for us - so we close the door for the stair way when it's chilly (like it has been lately - 50 degrees upstairs, 60 degrees downstairs - we're too poor to heat to proper Human Fashion).
Well, one day, Solo was feeling just a bit Needy. Newfie Needy I guess you can call it. So he crawled under my desk. It was at that moment (or several Moments later) that DH went upstairs and left the door open. Solo jumped up and ran to his "Spot on the Stairs". And of course, since he's in the stair way, we don't shut the door because ... well... that would be rude to shut him out!
So now Solo thinks, "If I get under her desk, the door will open and I can get to my Spot On The Stairs".
Remind me to tell you all the story of "How Solo Gets Outside" or otherwise known as "Solo Locks Himself in the Bathroom. Again. On Purpose" :| These are also known as "SoloIsms"