These puppies can really surprise you.
Bitsy can't jump over the gate, I think she has really stubby legs or something...
I have a gate up that I wedge between a heavy garbage can. It's been setup like that since I brought her home, now 6 months later, she's learned how to move the garbage can and escape through the gate.
The first few times she's escaped, I came home and the apartment was fine, except for the odd chewed up pieces of paper. Then last week, I came home and nearly had a heart attack. She got into my stash of yarn (which is on a high shelf - I think the cats must have knocked it down) and somehow managed to tangle herself in it. It was wrapped around the coffee table, around her body and the scariest of all, around her neck! Everytime she tried to move, it wrapped tighter on her. She was so entangled, she was lying on her side and looked so sad. I cut all the yarn away from her as quick as I could and I thought I was going to bawl my eyes out.
Luckily, other than the scare, everyone's ok. I have now bolted the gate to the wall so there's no way she can escape.
I learned the hard way that these puppies can always find different ways to give you heart attacks. Try to puppy proof as much as you can, than try even harder.