We looked out of the bedroom window this morning to see Remy eye to eye with us, half way up the fir tree. We watched as he climbed even higher till he almost ran out of tree (which is nearly as tall as our 3 storey house) then calmly climbed back down again.... Maybe he thinks he's a squirrel or something, but I DO wish he wouldn't do it - it's bad for my blood pressure !!
(Strangely enough, although he loves climbing trees he's completely ignored the Xmas tree indoors - and after all the effort we went to, tethering it to a hook in the ceiling, too !)