Crawling and mischief making

Bevan is now getting into lots of mischief because he can crawl and he has figured out how to stand up against furniture.
So now when he doesn't want to go to bed he'll stand up in his cot and cry.
I don't think he knows how to sit down again so I've been rescuing him, which is probably teaching him all sorts of bad things.
Have to do more baby proofing.